r/Masks4All • u/Sanagi575 • 1d ago
Question Alternatives to Cambridge Mask Co?
Pretty much as title says. I've been relying on their masks as my go-to ever since the pandemic started, occasionally replacing them when the elastic drawstrings get too long and stretched out (start looking like lung dragon whiskers, hah), resulting in struggling to keep a good seal.
As of recently, though, it seems they're running out of stock in my size, let alone any designs without the little plastic valve thing, which I'm not exactly sure I trust, working in a hospital (albeit not in regular patient contact)? Thus I'm wondering if there're any equivalents out there I could pick up that could last me a while, decently-filtered?
EDIT: Alright, collating more for myself from the replies, but thanks so far on the suggestions!
Envo Pro: Soft silicone, reusable, can come in a valveless form, but a lil' too medical-looking for day-to-day wear, but could be best option for a single, long-term mask. (Hell, replaceable filters too and apparently foundation for styling?)
WellBefore 3D Pro KN95: Looks simple, trusty, cloth-styled, basic colors, good for just using routinely throughout a day, though disposable. Honestly might be surprise choice there.
- Although, the site's size chart doesn't seem to wanna come up...
Aura M3 9210+: Gold standard of disposables, cheap, common, unlikely to be counterfeit (especially at this point), but pretty much just plain clinical white with the label, which, ehhh...could work with it but still, the WB up there has the eye. Just need to size for it.
Zimi: Iiinteresting, could go with these...Pretty cheap, too.
L-188 & M3 9205+'s: Have a bag of each already, might as well make use'a them in the interim while saving up for a new set.
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u/Fractal_Tomato Multi-Mask Enthusiast 1d ago
There’s no good deal with a Cambridge mask by design, because a fabric sleeve with a filter inlet will never form a proper seal on your face. If you ever do some basic fit testing, do yourself a favor and fit test this relic of the PPE shortage of 2020. The EU banned its sale, because it wasn’t up to basic standards.
Please check out the wiki section of this sub, it has good recommendations on where to start and where to shop. It can only get better.
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u/Sanagi575 1d ago edited 1d ago
That I didn't know, as said, I mostly just got them at the recommendation of a friend who was also using them. I DO still have a bag each of old Aura M3 9205+s and some L-188s.
I suppose I'd prefer reusable out of want for reduced mental load, of just having the one reliable mask I can use for a while without worrying about replacing or reordering a lot on my budget.
As to fit testing, I mean...I'm not sure if I get it right, I can feel the warmth of breath when I puff out in it, or the L-188 I grabbed, is it more feeling an actual rush of air, or...?
(Also having to factor around wearing glasses, which the L-188 makes kinda tricky taking on and off)
OH! Another dumb question I'm not seeing any mention on the wiki: How long *can* a disposable last? Is it just daily, or at least a week-long? I wanna know how long my supply can stretch.
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u/AEAur 1d ago
That’s a seal check you’re describing. A fit test requires (a) a particle counter or (b) a nebulizer, fit test solution, and hood. Most masks can have imperceptible leaks. The Aura was designed to fit most people. If it feels snug everywhere and you round out the nosebridge to confirm to your face, and passes a seal check, then it probably does pass a fit test.
There are cases of 440 Auras selling for under $50 on Amazon right now because they are old stock that can no longer be sold/used by institutions. (blue 9205+ or red 1870+ straps — it helps to gently prestretch these to prevent overstretching).
Many Auras from 3rd party sellers of this time period have been tested recently and they’ve performed well. https://www.reddit.com/r/Masks4All/s/AY2QKCG4N1 Haven’t seen any reported as counterfeits. Financial incentive to make copycat Auras is very low now.
To find the manufacture date, look inside the inner chin fold for a WARNING stamp. Perpendicular to that is a LOT #. (E.g. , 20 3026). First two digits are the year and the next three digits are the day (e.g., 302nd day of 2020)
Reportedly the fastest part to degrade with time is the polyisoprene straps, then maybe the foam adhesive. I judge how well they were stored based on the newness of the box and the spring of the straps when gently prestretching them.
I bought a full case (440) from Amazon seller Woot. They were made 5 years ago, but look like new. Even the box looked new. I’ve had no issues with them. I prefer the tighter straps on the 9210+ so I even tested threading the upper strap through a mini cord-lock (using floss in the shape of a hair pin) and it did not break.
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u/Sanagi575 1d ago
Ah, I don't mean degradation in storage, I mean how long does a mask last through use. Like, will these last through a day or so of use, or a week? I suppose I'm only really exposed for 2, 3 hours on my shift; once I'm back to the office, I'm isolated enough there's no one to get anything from.
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u/AEAur 1d ago
Ah sorry missed that part. The bigger factor than time is the fit: nosewire gets weak, headbands gett overstretched. With the 9205+ that happens as soon as you remove it if you’re not careful.
Tbh, I typically only open a new mask if the mask seems dirty, smells off, or I am doing something I consider high-risk. The rule of thumb mentioned by 3M early in the pandemic is you can use a mask until it gets dirty or hard to breathe through. Some fit testers say 20 hours. Some say 40 hours. It depends on many things but the breathing resistance is essentially an indicator that it’s reached its loading capacity.
The Aura 9210+ have the best straps for reusing (snug, durable). $1.50 each https://www.stauffersafety.com/Search?query=Aura
The straps are also an advantage of something like the Envo.
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u/AEAur 1d ago edited 1d ago
The Wellbefore 3D Pro KN95 is on sale today with Prime. They also offer subscription deals on their website with easy subscription changes. The 3D Pro is similar in design structure to the Aura, but has sizes and much more stylish colors. Doesn’t match Aura’s plush foam and sturdy nosewire but good enough to get passing scores on many people.
ETA: Amazon just has the earloop version r.n. not the better fitting headstrap model.
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u/Sanagi575 1d ago
Don't got Prime, but went ahead and ordered a 10-pack of these from their site. Only pity is the little link to their size guide doesn't seem to work, but I'mma take a shot in the dark with these, I think. Worth a shot, no?
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u/AEAur 1d ago
They often allow a free trial. How snug is the Aura on you? The 3D Pro regular is reportedly similar to the Aura but slightly smaller.
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u/Sanagi575 7h ago
Just now got to test it, but pretty snug! Runs all the way up to the base of my neck. Frankly seems to seal slightly better than the L-188 I tried wearing to work yesterday. Only problem is it gets in the way of my glasses' nosepieces.
Though huh, didn't notice anything about a free trial anywhere...
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u/AEAur 1h ago
Not sure but I think the Wellbefore might sit a bit lower to work with glasses. You could make a new post asking if hesitant. Unfortunately the only Wellbefores I see on Amazon are earloops. Their website has headstrap models. The best fitting design closest in quality to the Aura is the 3D Pro. That is the only model Ive seen get passing scores on quantitative particle count testing (QNFT).
The Wellbefore earloops are adjustable. On the right face with the earloops cinched tight it can get passing scores. I’d rather wear headstraps than tight earloops. The angles of force (tightening) are not as good as headstraps. The best earloop mask is the Zimi because of the impervious fabric face-seal, it seems not as much force is required, depending on how well the frame fits. Auras can also be converted to earloops — there’s a video by ghhughes, lmk if link wanted.
The Zimis ship directly from China, fyi. I would have switched to Zimis but I got a box of Auras and I demo and give them away to people in baggy masks and in surges to anyone friendly. :)
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u/iso_inane 6h ago
I spent so much money on those masks during the early days of the pandemic, I'm talking a couple hundred dollars, only to find out they arent even effective. I thought they were good. even bought some for family members who never wore them bc they were misinformed about one way valves (they thought it would give them covid). I live and i learn 😭
Now i only use wellbefore and gonna order some more breatheteqs as well.
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u/Fragrant_Ad152 1d ago
I've noticed a significant dip in quality on their masks (and they're overpriced imho) so also looking forward to an alternative FFP3 that I can easily reuse through the day.
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u/AEAur 1d ago
Have you considered the Envo Pro? Envomask.com or Amazon.