Cambridge Mask Review – The Best Reusable Mask?

Cambridge Mask Pro

When I first moved to Korea, the Cambridge Mask Pro was my mask of choice for years. At that point I didn’t know much about masks and Cambridge Mask is one of the most beginner-friendly masks on the market. It’s also one of the most well-known.

However, despite wearing the mask for years I’ve never actually done a full review of the mask. While I have done a comparison between Cambridge Mask and Vogmask and Airinum, I never got around to reviewing the mask itself. 

In this post today I want to give my thoughts on Cambridge Mask as well as its strengths and weaknesses. This is my full review of the Cambridge mask – does the mask hold up compared to some of the other popular masks on the market?

I will focus on what I believe to be the most important aspects in order – technology (filtration), sizing & adjustability, design, and models. I think then conclude the post by mentioning for whom the mask might be a good choice and vice versa.

Please note that there are two models of Cambridge Mask – the Cambridge Mask Basic and the Cambridge Mask Pro. This review will focus on the pro model. Both masks are largely similar, except the Pro has a longer lifespan and makes use of a valve.

Get 10% off Cambridge Masks using the code ‘BREATHESAFEAIR10’

This post contains affiliate links. For more information, please refer to my affiliate disclaimer. I was NOT sent a product for review, this product was purchased by myself. All opinions expressed in this post are my honest thoughts. I only recommend products that I believe in.

Information on this blog is for informational purposes only. Readers are encouraged to confirm the information herein with other sources. Furthermore, this information is not intended to replace medical advice from professionals. This website assumes no responsibility for the accuracy of information and information is subject to change without notice. Devices mentioned on this website are not medical devices and do not guarantee protection.

Filtration Technology

Cambridge Mask Filter

The most important aspect of any mask is the filter. The same goes for the Cambridge Mask. Luckily, it offers quite strong filtration qualities and is comparable to some of the better-performing masks on the market.

Before going any further in this section there are some important points to keep in mind. Firstly, the Cambridge Mask does NOT hold a NIOSH (N95/N99/N100) rating. There has been a lot of confusion around this fact in the past and it led to many people believing that Cambridge Mask was N99.

The confusion came because Cambridge Mask claimed that they had N99-level filtration. While this is a true statement, the mask does not officially hold the rating. In fact, there is currently no reusable cloth mask that holds a NIOSH rating as they are intended for medical devices.

While reusable cloth masks can’t hold NIOSH certifications, there are other certifications that they can hold. FFP ratings given by the EU, KN ratings given by China and KF ratings given by Korea. Cambridge Mask holds an FFP2 RD rating. In regards to filtration, this is roughly similar to the N95 rating. You can learn more about European EN certifications here.

Since this confusion, Cambridge Mask has become much more transparent about its certifications and lab tests. In the past, they were never displayed publicly and I had to reach out to the company in order to write my initial review. Since then, they have now made everything public. Please feel free to refer to their certifications page for more information.

On top of the aforementioned rating, Cambridge Masks have also undergone filtration testing by Nelson Labs. These tests indicate the exact filtration efficacy at the most penetrating particle size and under the NIOSH testing conditions. Nelson Labs carries out these tests using latex, bacterial, and viral particles.

The specific filtration efficiencies of Cambridge Mask are as follows: PFE (latex particle) ≥ 98.9%, VFE (viral particle) ≥ 99.8%, BFE (bacterial particle) ≥ 99.0%. For each test 5 samples were used, and these were the lowest results from the samples. It is worth noting that, on average, the samples provided higher filtration as the table below shows.

Lowest Filtration Result vs Average

Particle TypeLowest ResultAverage

The above results were found using a particle size of 0.1μm (for PFE) and 2.8μm (BFE & VFE). Further, all of these certifications are new with the tests being carried out in July/August of 2020. This means that the information is up to date and accurate.

With all of that being said, Cambridge Mask’s filtration results look good when considered in isolation. However, I wanted to compare the filtration to other popular masks to see how Cambridge Mask holds up against the competition

Particle Filtration

Filtration TypeParticle (0.3μm)Particle (0.1μm)
MeoAir≥ 96%≥ 99.74%
Cambridge Mask≥ 99.47% (old results)≥ 98.9%
Vogmask≥ 95.38%NA
Totobobo (F94)NA≥ 99.7%
Metamask≥ 98.7%≥ 99%

As seen in the table above, Cambridge Mask provides very competitive filtration at 0.3μm (albeit using older test results). In fact, compared to the masks on the table above it performs the best at 0.3μm. At 0.1μm Cambridge Mask falls slightly behind when considering the worst performing sample results. However, the filtration still falls within 1% of the other masks.

With filtration results this high, it may be best to use whichever mask fits you best. A well-fitted FFP2 or equivelent mask will provide better protection than a loosely-fitted FFP3 or equivelent mask with leaks. With this in mind, since the results are quite similar it might be worth picking the best fitting mask instead.

Viral & Bacterial Filtration

Filtration TypeViral (2.8μm)Bacterial(2.8μm)
MeoAirNA> 99.99%
Cambridge Mask≥ 99.8%> 99.0%
Vogmask> 99.9%> 99.9%
Totobobo> 99.9%> 99.9%
ConceptAR≥ 99.7%≥ 99.8%

Viral and bacterial filtration with Cambridge Mask is also equal to or over 99% in both cases. While the results are lower than some of the competition, they are the worst-case results out of the samples tested. In reality, all masks should perform similarly and the best fitting mask is the best choice.

Cambridge Mask also features a carbon filter. This filter is very heavily advertised and is a big attraction for many buyers. Where the primary filter is designed to filter particles, activated carbon filters are designed to adsorb volatile organic compounds. Carbon filters are also effective against odours.

Overall, the Cambridge Mask Pro features a capable filter. The particle filtration provided is some of the best among reusable masks, however, it does fall slightly behind the competition in regards to viral and bacterial particle filtration. With this in mind, however, it’s important to remember that no mask is effective unless fitted correctly.

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Fine Dust Respirator

Fit is perhaps the second most important aspect of any mask. A good fit is vital for the best protection. If a mask does not create a seal on your face, particles such as fine dust, bacteria, and viruses can avoid the filter altogether and enter around the edges. 

This means that the air (that comes through the sides) is not actually being filtered. While you may receive some protection, you will not receive it to the full extent that the mask can offer. For this reason, it’s very important to make sure that you purchase the correctly sized mask.

If you need to know how to fit a mask correctly, please refer to official resources such as this guide from CCOHS. While the guide is designed for respirators, many of the same steps and processes still apply to cloth masks.

Cambridge Mask follows the standard reusable mask formula. This means that it uses ear-straps and a wire nose-piece for adjustments and fitting. However, Cambridge Mask Pro also has one bonus that is one of its greatest appeals for me.

This unique feature is the chin strap design that the Cambridge Mask Pro uses. Unlike other ear-strap masks, the Cambridge Mask features two adjustable straps on either cheek. These straps are elastic and help create a strong seal around the chin.

In times such as this, it’s vital not to touch your mask. However, the adjustable straps give you an easy way to adjust the mask without touching the filter or ear-straps. Adjusting these straps also makes it much easier to get a better fit.

The Cambridge Mask also features the wire nose-piece that is standard in most respirators. The wire nose piece has rather surprisingly always stayed in place during my wear (two masks, each of which were worn at least 100 times).

However, this mask runs into the same issue that all other ear-strap masks do. There is very strong pain behind the ears after long periods of wear. If you see yourself wearing your mask for long periods of time, make sure to purchase the optional headband accessory. This is a cheap addition and will remove the pain from your ears.

I far prefer masks that use neckbands (such as Purar Mask) and full-headbands (rather than simply using a headband that connects to the ear-straps). However, ear-straps are still the standard for reusable cloth masks and are far more common than these alternatives.

Cambridge Mask Fitting

Cambridge Mask size guide. From Cambridge Mask.

One thing to keep in mind is that the Cambridge Mask is a bit heavier than some other competing masks. Although this doesn’t make an impact initially, you may notice the extra weight (and the heat that it creates) over long periods.

Therefore, while the Cambridge Mask won’t provide as good of a fit as masks such as the Gill Mask which use a silicone face seal, it is one of the best fitting cloth masks that I have tried. Cloth masks are often very hard to fit correctly, but I found Cambridge Mask to be one of (if not) the best so far.

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Cambridge Mask Features

The unfortunate truth is that no mask is comfortable. If there is a comfortable respirator, I have not found it yet, and I would guess that I have tried over 50 so far. While some are more comfortable than others, the reality is that they all provide some discomfort. Cambridge Mask is right in the middle of this spectrum.

Although not the most uncomfortable mask, it is also not the most comfortable. The mask is quite heavy and (even with the valve) it can get very hot and humid inside the mask. 

Some other masks remedy this by using lighter materials, or by using dual-valve designs. While masks will always have different air conditions inside compared to out, the Cambridge Mask can get very hot inside – especially in summer. 

The second issue that I have with comfort is the use of ear-straps. Ear-straps are just, by nature, far less comfortable compared to head-bands. Luckily, this can be remedied using an optional accessory.

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Cambridge Mask Design

Cambridge Mask comes in many different colours and designs, and there are new designs being released over time. Whether you want a simple black mask or something that stands out, you can find it from Cambridge Mask.

If you want a mask that blends in, I recommend getting the Churchill or another plain-coloured mask. The mask is almost totally black and can work with nearly any outfit. 

The biggest standout feature of the mask from the exterior is the dual chin straps. Cambridge Mask is the only mask that I know of that features these straps and they are the only standout feature from the outside.

The Cambridge Mask generally doesn’t stand out due to the use of a relatively standard mask design. While some of the colour options are more eye-catching, there is a good balance of subtle and obvious colours. I appreciate the choice as I personally prefer masks that blend in.

Cambridge Mask Models

I would have appreciated the addition of some kind of microfibre inner layer, to prevent contact with the carbon filter. However, this is a very minor issue. I found that I did suck in the inner filter sometimes when breathing, but the issue was not as serious as with other masks.

As mentioned earlier, the mask is a bit heavier and warmer than some competing masks. However, when considering that the Cambridge Mask provides very high filtration levels, this is a minor downside. The mask might not be ideal for warm climates, but it is a good choice for people needing high filtration.

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Lifespan Air quality

Cambridge Mask is a reusable mask, and therefore it can be used for extended periods of time. The masks do not feature a replaceable filter, so the mask must be replaced once breathing becomes difficult.

However, the mask lifespan ranges from about 200-350 hours depending on the level of air pollution. Even for days of very high pollution (such as an AQI over 300) the mask has an expected lifespan of over 200 hours.

While there is no definite way to tell when the mask needs replacing, the general advice is to replace the mask once breathing becomes significantly more difficult. If you wear the mask regularly it should last a few months.

The mask can be hand-washed, but this will not increase the lifespan of the mask. Having the option to wash the mask can be very useful in certain situations, especially when they can start to smell after a few days of wear.

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My Thoughts

Cambridge Mask Breathesafeair Review

The Cambridge Mask was my go-to mask for about 18 months before I started this blog. While I have tried a lot of different masks in the past few years, I always came back to the Cambridge Mask.

Personally, I come back to the mask because it is one that I trust. It fits me well (I have a very small face and use the medium size), and the masks last for a long period of time. It’s very easy to wear, and it’s a mask that I quickly got used to.

My biggest issue with the mask is that it is warmer than other masks. While this is no issue in the colder months, it can be very uncomfortable in the warmer months. Also, the head strap is essential for long periods of wear. Without the head strap, the mask starts to give me headaches after 4 hours or so of wear. 

However, despite these small issues I often end up coming back to Cambridge Mask. I know that many others do too. For that reason, even today (when I have experienced many masks), I often find myself comparing to Cambridge Mask. For me, this is the benchmark of a good cloth mask.

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Should You Buy a Cambridge Mask?

Cambridge Mask Churchill

With all of that being said, this brings my Cambridge Mask review to a close. So, would I recommend the mask? Well, as you may have guessed after reading my personal thoughts on the mask, yes, I would recommend it. 

The Cambridge Mask is a great reusable mask and the one that I usually turn to for my own use. If you are looking for a respirator that provides good filtration against fine dust, and viral and bacteria particles, this is a great mask and definitely one that you should consider. It’s purchasable almost all over the world, and many countries have authorized resellers. 

Of course, it’s not perfect. There are other masks that provide better viral and bacterial filtration. On top of this, the Cambridge Mask is a very warm mask to wear and I found it to be uncomfortable during the warmer months. Despite these flaws though, the mask has served me well.


  • > 98.9% filtration.
  • Proven to be child-safe.
  • Very adjustable, allowing for a good fit.
  • 99.8% and 99.0% viral and bacterial filtration.
  • Long life-span.


  • Warmer/heavier than some other masks.
  • Ear bands can cause pain after long periods of wear. This can be avoided with the head-band accessory.
  • Filtration efficacy will wear off over time (or as washed)

Considering Vogmask or Airinum too? Check out my Vogmask vs Airinum vs Cambridge Mask comparison. If you are looking for something else altogether, I also have a post on the best reusable respirators.

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Cambridge Mask FAQ

What Rating Does Cambridge Mask Have?

Cambridge Mask holds the FFP2 RD certification. On top of this, it has over 99% filtration for all particle types (PFE, BFE, and VFE).

Is the Cambridge Mask N99?

The Cambridge Mask adheres to the NIOSH N99 filtration requirements. However, the mask does not hold an official NIOSH N99 rating.

What are the Best Cambridge Mask Alternatives?

There are many Cambridge Mask alternatives out there. Vogmask, Mau Mask, and Totobobo are all popular options. You can find a full Cambridge Mask vs Vogmask article here. Another mask that offers similar capabilities but for cheaper is Re-Mask Sports.

How Long Can I Use Cambridge Mask For?

Usually you can use a Cambridge mask for around 300 hours or until breathing becomes difficult. However, this depends upon the levels of pollution that you are wearing the mask in and the AQI.

Can Cambridge Mask Filter Viruses?

Cambridge Mask offers 99.8% viral filtration as well as 99.0% bacterial filtration.

Does Cambridge Mask Use a Valve?

Yes. Cambridge Masks make use of a valve. However, this valve can be covered using the optional valve stopper.

22 thoughts on “Cambridge Mask Review – The Best Reusable Mask?”

    1. Hello Laura.

      I have seen the Nelson Labs certificates personally. I reached out to them and asked to see them – I will not write an article on a mask or respirator without official lab results, it’s one of my requirements.

      However, they asked me not to publicly share them. If you want to see the certificates for yourself I recommend contacting the company.

      They are not listed on the CDC site because as I said in my article, the masks do not hold the N99 rating. Rather, they meet the requirements in regards to particle filtration. ‘On top of the FFP2 certification, Cambridge Mask also meets the filtration requirements for the NIOSH N99 standard. Although the mask is not officially certified as N99, it does meet the requirements and has been lab-tested’.

      Consumer reusable respirators currently can not hold an NIOSH rating due to some of the requirements.

      I understand that I could have been more clear about the exact details. I will update my article to reflect this and to be more obvious about the lack of N99 certification.

  1. Hi.
    I use a Cambridge mask. I agree with all your comments re wearability and have actually bought quite a few for myself and others since their early introduction. The addition of the adjustable head-band was a vital necessity to give the masks a tight fit. I wear glasses and it is sometimes difficult to get just the right fit to avoid them steaming up, but perseverance does pay!

    However I am unclear about one thing. Should they ever be washed or not? The company seems to imply that it is not necessary and you will know when to discard them when it becomes harder to breathe through them. Would washing (assume hand-only in say just warm water alone?) degrade the mask in any way/make it less easy to identify when it should be discarded? I don’t wear them so frequently that I can almost count the hours – so for me, knowing the answer to this would help a lot. Thanks in advance!

    1. Hello Steve,

      Cambridge Mask’s official advice is:

      The mask can be hand washed with soap and hot water. However, this will not extend the life of the filters as the pollution will be locked into them. As the whole mask is the filter, once it has reached its recommended total hours of use, a new mask is needed. Please do not machine wash or dry the mask. (

      Hand washing should not degrade the lifespan of the mask/filter or make it harder to tell when it should be discarded. However, I would also refrain from washing it unless it is needed (the mask smells or is visibly dirty). I believe that Cambridge Mask implies that they don’t need to be washed as they are intended as pollution masks (in which case washing isn’t that essential). They should definitely be safe to wash though, and the filter lifespan shouldn’t be impacted too greatly. I hope this helps!

    2. Cambridge Mask claims that their masks can be washed without affecting filtration efficiency – however, most people familiar with how their mask filtration works (i.e. through electrostatic filtration) will be able to deduce that this is not the case. Water (and soap, and alcohol) significantly reduces the filtration efficiency of a mask that filters through electrostatic filtration. (The majority of masks utilize electrostatic filtration, although there are some that don’t.) The resources and studies on this are out there (and you can check with scientists / mask manufacturers familiar with this topic) – I will leave it at that.

      Cambridge Mask has been repeatedly asked to comment directly on this issue, and they have demurred / evaded the question with their standard reply without addressing its inherent lack of logic and science-backed evidence.

      To tell consumers that their masks can be safely used after washing (especially during a pandemic, when people are more likely to wash their masks frequently) puts customers at risk and conveys a disregard for customers’ safety and health.

      I am replying to your comment because I empathize with your anxiety and questions – and I know how frustrating it is to be given the run around by that company. Hope this helps.

      1. Hello,

        Thank you for your great reply. You are largely right, I just wanted to add a few things.

        Firstly, electrostatic filtration is not the only method of filtration. While it is a very effective one, there are also filtration mechanisms such as diffusion, inertial impact and interception (usually used in conjunction with electrostatic filtration) these are less impacted by washing. Washing definitely will decrease the efficiency of the filter and this is why it should only be done when essential. I believe the issue is in the wording – the lifespan of the filter won’t be decreased, but the efficiency will be.

        Your comment encouraged me to look up the difference between soap & non-soap washing. Masks can be boiled for around 5 minutes while retaining 90-98% efficiency (Source | Source) and this is probably the easiest method to wash masks at home (dry heat is a good alternative and generally retains more efficiency though). On the other hand, if you wash with soap or medical alcohol the filtration efficiency drops down to 50-70% (source).

        This makes me wonder why they advise washing with soap. As you have mentioned, and as research shows, it lowers filtration efficiency immensely. Boiling seems like a much better alternative and retains far more filtration (but should still only be done when essential).

        With that being said, I apologise, Steve, for the answer I gave you the other day about washing. I took the information from the Cambridge Mask site, but that advice is obviously not great. If you do want to wash the mask, perhaps look towards boiling them? There are many studies out there that give the exact specifics (how long to boil, how hot, etc).

        The sources aren’t the best but I will do some more research once I get home and see what else I can find.

        Again, thank you for your comment. It’s very insightful and I hope more people can read this.

    3. Worth noting that the valve allows your exhaled breath out without any filtering. This means the mask will not provide much less protection to anyone around you than valveless masks. In some countries, I would think it does not meet the legal requirement for a face mask (as such rules are usually focused on protecting others).

    4. thanks for the report, ethan. i’ve been using a cambridge mask for a few months now. not sure if i missed this part, but the CDC and many other reports that have been coming out recently have stated to avoid masks with valves or vents as they can result in expelled respiratory droplets that can affect others and doesn’t prevent the person wearing them from transmitting to others. is the cambridge vent superior to others? all the reports have placed masks with vents/valves in the middle of the bunch in terms of protection, with vent-free N95 and surgical masks at the top of the list. i was going to email cambridge about this.

      1. Hello Harley,

        You are exactly right! I did mention this in the article, but I guess you must have missed that part 🙂

        The Cambridge Mask valve unfortunately has the same issues that other valves have. As such, it shouldn’t be used when two-way filtration is needed. Masks with valves will provide the same protection as non-valve variants, but they will provide the protection ONLY to the wearer (and not both ways). This is where the issue is.

        For this reason, the Cambridge Mask is perhaps not the best choice when it comes to masks for viruses.

    5. I bought 4 masks of different sizes. Not one fit. The ear strap is too thick to secure the mask tight to your face; it slips off my ear. Also, all 4 masks were poorly made. The tightening cord was stuck into the material so it doesn’t glide through the fabric – the mask becomes uneven across my face. My wife, brother, and his family have the same problem. We decided that the masks would leak too much given the manufacturing flaws. We bought these masks believing they would fit snug after adjusting the straps but found they’re not as good as N95 and similar.

    6. Hi Ethan

      I was concerned to read the comments about washing affecting the filtration efficiency of the Cambridge mask so significantly. As I have the mask and have been washing it with soap and water, I emailed them to query this. They’ve replied to say washing has no effect on filtration efficiency. Is this something you’d be able to take up with them as it’s potentially misleading and a large number of their customers, like me, will have bought their mask thinking there’d be no no deterioration in filtration efficiency by hand washing with soap and water?


      1. Hello,

        I understand your concern – it’s definitely something that we need clarified. I have reached out to Cambridge Mask and will let you know as soon as I get a reply.

        Thank you,

        1. Hi Ethan, just checking to see if you have received anything back. As mentioned, it is clear that masks washed with soap/alcohol will be impacted signifcantly when it comes to effectiveness ( . I believe Cambridge is misleading customers on this, and doing it for an obvious reason. If consumers knew you can not clean a mask well without signifcantly reducing the filtration efficiency, then they wouldn’t buy cambridge mask. People buy cambridge masks for its N95+ rating and ability to reuse. After washing, the efficiency drops to below that of even a cheap surgical mask which is shown to block around 80% of PM2.5 particles. (

          I am afraid many consumers are washing the masks and wearing them thinking they are getting N95 protection, when they are getting far far worse. This is scary as I know people with compromised immune systems who depend on these masks and are in this exact situation. Their life quite literally depends on this information.

      2. Hi.

        I bought the N99 Pro 65Roses and I noticed some differences with the quality from my previously bought Newton. The inner silicon membrane on the valve is not the same as before. Its kind of thinner and smaller now that when you try to look from the inside of the mask you can see some gaps on the sides of it. The inner lining of my 65Roses is of cloth material whereas my Newton has the carbon filter layer.

        I emailed Cambridge Mask regarding this matter and this was their response “ We would like to share with you that our 65roses is not quite the same as our PRO mask, but we still classify it as a member of our PRO mask range. 65roses is the result of our special collaboration with Jennifer Ronnenberg and it has an additional layer after the carbon filter layer. The valve should allow you to breathe easily while also reducing humidity in your mask. Through the small gaps in the front area of the valve, you may try gently but firmly pushing the inner silicon membrane with a hard, pointed tool such as a pen or a pencil. Then, observe if the valve correctly opens when you exhale and closes when you inhale. The easiest way to see this would be to look in the mirror and see if it now works.”

        I did what they advise regarding the small gaps on the valve and yes the small gaps are gone but temporarily only. After washing the mask, the silicon is back to having small gaps again. I think the problem here is that the silicon does not really fit well to the valve because it is smaller now than it is before.

        I just hope that they could maintain the high quality of their mask given that it is expensive.

      3. I just found your site and I love your in-depth reviews, great job!
        I started using masks due to asthma (so that’s a few years before the COVID pandemic) and I’ve always alternated between Cambridge Mask and Vogmask, as they offer the best protection against viruses and bacteria (my main concern, as I used to get ill really fast and with asthma, that gets dangerous) along with best design too – wearing masks from these brands didn’t make me feel like some weirdo / freak and otherwise I would have been to self-aware to wear a mask, even if I needed one. So the best in terms of filtering germs and also in terms of looks/design.
        I liked the silver in Cambridge Mask and also the adjustable strings.

        My favourite of the Cambridge masks was The General (the camouflage pattern), it’s one of the best patterns I’ve ever seen. However, I tried to restock on it when my mask expired, but they were sold out and then the pandemic started, so Cambridge only sold masks in black or in navy blue. At the time, they told me this was because of all the problems that mask industries faced (mask restrictions, no mask availability, etc.), which was understandable. But I’ve now been waiting for over 1 year and a half to buy again The General mask and it’s still not in stock, which is not understandable, as now there are many masks everywhere. Cambridge used to have a lot of patterns for masks, but now it’s become a dull company with just plain solid colours and just a couple of patterns, none of which being the camouflage one. Big disappointment, honestly, as for me efficiency is my main concern, but I also want style. I still will buy a Cambridge mask every now and then (not often), but now I mostly use Vogmasks. It’s a pity, though, so I hope they start selling pattern masks again, obviously including The General mask.

        1. Hello Lys, thank you for your comment and kind words!

          I am in a similar situation with asthma, it’s hard to find a mask that has both high filtration and a design that actually looks good. In fact, this balance seems to be very hard to come by. Have you tried Airinum? They have some very nice designs and great filtration too. They are much more expensive, but they do offer replaceable filters which may be worth it in the long run. I mention it because these are some of my favourite day-to-day masks.

          That’s very odd regarding the Cambridge Mask production. I know that they are still in very high demand (reusable masks and disposable masks require quite different manufacturing processes) but I didn’t realise how hard it was to get a non-standard design. I hope that they bring those back soon! I’ve also been looking to pick up a new Cambridge Mask but they seem near impossible to find these days! Are Vogmasks significantly easier to come by where you live?

      4. Hi Ethan

        Just wondered if you got a response and are able to provide an update on the washing/filtration efficiency point?


        1. Hello,

          I did contact Cambridge Mask about it and they sent the following statement: ‘extensive research and testing we have done suggests filter efficiency will not be negatively impacted by light hand washing with warm water and a small amount of major brands of soap/detergent’.

          However, I have not been able to test this myself and have not seen any test results or proof.

      5. Hi, thank you for your work on all the reviews, they have been super helpful!
        I have a question, have you ever heard of the Cambridge masks practically disintegrating into the wearer’s face? I wore a Cambridge mask (Watson Pro) for hours recently, and when I removed it, I had small black fibers all over my nose, mouth, and cheeks. I even had them in my nose, as seen on a tissue after blowing my nose. I complained about it to Cambridge Masks and they sent me a new one. Then it happened again with another Cambridge mask I already owned (Admiral Pro, not the replacement mask!), and I just about had it. I again complained to Cambridge, and wanted a refund, since I already have sensitive airways due to illness, and do not wish to breathe in black mystery fibers. They sent back a lot of empty words, tried to offload the problem on me and said they couldn’t do anything, their hands were tied. Only after many many emails and some choice words on my part did they refund two of four masks I bought. Of course, I am not using their masks again, the trust in them keeping my airways safe is gone. Both masks were washed as instructed, and had been worn by me before. Have you ever heard of something similar? I haven’t, but I find it hard to believe I am the only one, and it happened to me twice with two different Cambridge masks.
        Thank you! Nina

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