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Walmart

3M masks $12/15 packs

  • Last Updated:
  • Nov 3rd, 2020 11:11 am
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Deal Guru
User avatar
Oct 21, 2015
12814 posts
133741 upvotes
888888 upvotes

[Walmart] 3M masks $12/15 packs

Sold out online but many stores have them.

This mask is better than other dust masks.

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lo
Costco West: BC, AB, SK & MB
Costco East: ON, Québec , NB, NS & PEI
11 replies
Deal Expert
User avatar
Nov 2, 2003
17104 posts
3861 upvotes
GTA
does this do anything better than face covering?
it's not medical n95?
Deal Addict
User avatar
Jun 16, 2019
1016 posts
3350 upvotes
west as
actng wrote: does this do anything better than face covering?
it's not medical n95?
"Provides at least 95% filtration efficiency against solid and liquid aerosols and is somewhat resistant to oils
Can be used in oil and non-oil containing environments
Non-valved, disposable respirator
Can be used in oil and non-oil containing environments
Lightweight for comfort
Safe, convenient, and disposable design
Great for use when sanding, sawing, grinding, lawn mowing, sweeping, dry-wall grinding, woodworking, and working with fibreglass insulating particles"


Not N95. It'll knock down your exhalation like a face covering.
This is perfect for renovating your house, not stopping you from catching the lung clap
Jr. Member
Feb 18, 2009
139 posts
262 upvotes
vancouver
Krrrong wrote: "Provides at least 95% filtration efficiency against solid and liquid aerosols and is somewhat resistant to oils
Can be used in oil and non-oil containing environments
Non-valved, disposable respirator
Can be used in oil and non-oil containing environments
Lightweight for comfort
Safe, convenient, and disposable design
Great for use when sanding, sawing, grinding, lawn mowing, sweeping, dry-wall grinding, woodworking, and working with fibreglass insulating particles"


Not N95. It'll knock down your exhalation like a face covering.
This is perfect for renovating your house, not stopping you from catching the lung clap
Yup, pretty sure regular surgical masks are still better than this and cheaper
Sr. Member
Mar 20, 2013
796 posts
990 upvotes
Winnipeg
Krrrong wrote: "Provides at least 95% filtration efficiency against solid and liquid aerosols and is somewhat resistant to oils
Can be used in oil and non-oil containing environments
Non-valved, disposable respirator
Can be used in oil and non-oil containing environments
Lightweight for comfort
Safe, convenient, and disposable design
Great for use when sanding, sawing, grinding, lawn mowing, sweeping, dry-wall grinding, woodworking, and working with fibreglass insulating particles"


Not N95. It'll knock down your exhalation like a face covering.
This is perfect for renovating your house, not stopping you from catching the lung clap

With a 95% filtration efficiency, these sound pretty similar to N95 levels. My guess is these might be missing the electrostatic capability and/or haven’t gone through the rigorous and expensive certification process.

Definitely sound more effective against covid transmission than non-medical surgical style or re-usable face masks.
Sr. Member
Jun 18, 2017
986 posts
830 upvotes
Never heard of home dust mask before. It was all just n95 before. Maybe these are n95 rejects off the line, so not good enough to earn the n95 rating so put them out as normal masks. Haha
Member
Feb 11, 2019
420 posts
457 upvotes
ON
N1n3l1v3s wrote: Yup, pretty sure regular surgical masks are still better than this and cheaper
Unlikely since the vast majority are not actually medical grade, even so, true medical masks (with ear loops as is the most common style) only had a filtration efficiency of ~38% as per recent JAMA IM article. They also pointed out the tightness of the seal plays a large role in filtration, given the masks OP posted are intended to create a tight seal to filter out aerosolised (>1μm?)particulates they are likely superior to other looser fitting masks even if they are not rated for submicron filtration.
Sr. Member
User avatar
Oct 18, 2012
852 posts
1241 upvotes
Montréal
Krrrong wrote: "Provides at least 95% filtration efficiency against solid and liquid aerosols and is somewhat resistant to oils
Can be used in oil and non-oil containing environments
Non-valved, disposable respirator
Can be used in oil and non-oil containing environments
Lightweight for comfort
Safe, convenient, and disposable design
Great for use when sanding, sawing, grinding, lawn mowing, sweeping, dry-wall grinding, woodworking, and working with fibreglass insulating particles"


Not N95. It'll knock down your exhalation like a face covering.
This is perfect for renovating your house, not stopping you from catching the lung clap
This sounds like P95 grade mask, I suspect these are P95 masks that didn't fully pass the standard and relabelled as sanding mask.
Deal Addict
Jan 13, 2004
1430 posts
938 upvotes
Vancouver
CheapWinnipeger wrote: With a 95% filtration efficiency, these sound pretty similar to N95 levels. My guess is these might be missing the electrostatic capability and/or haven’t gone through the rigorous and expensive certification process.

Definitely sound more effective against covid transmission than non-medical surgical style or re-usable face masks.
The biggest issue with dust masks is the lack of ability to form a proper seal. The filter media can filter 95% of particles from the air that goes through it, but a lot of untiltered air will leak around the mask. N95 masks seal around your face.
Sr. Member
Mar 20, 2013
796 posts
990 upvotes
Winnipeg
turbo_slug wrote: The biggest issue with dust masks is the lack of ability to form a proper seal. The filter media can filter 95% of particles from the air that goes through it, but a lot of untiltered air will leak around the mask. N95 masks seal around your face.
True. In fact, many/most health care facilities will have annual training (and possibly certification) for their staff showing them how to wear them properly.

For an average consumer, the difference between these masks and a true N95 sanding mask is probably negligible due to them being improperly worn most of the time. (I still have a bunch of pre-covid N95 sanding masks and they look pretty much identical to these ones)

Compare that to the typical non-medical surgical style masks or the re-usable cotton masks, that not only do not seal at all, but also do not come anywhere close to 95% filtration efficiency.

I personally don't think that these are needed for day-to-day use, but they probably perform much closer to N95 masks than the the non-medical surgical masks or reusable cotton masks.
Deal Addict
User avatar
Jan 19, 2011
1744 posts
1341 upvotes
Montreal
N1n3l1v3s wrote: Yup, pretty sure regular surgical masks are still better than this and cheaper
Disagree. I started using kn95 from Dollarama which happens to fit me well with a good seal and it's night and day from a surgical mask. It literally puckers as you breathe. Wearing a surgical mask now is like not wearing a mask after wearing the kn95. Pretty sure a surgical mask doesn't even filter...
Member
Feb 11, 2019
420 posts
457 upvotes
ON
soonleaf wrote: This sounds like P95 grade mask, I suspect these are P95 masks that didn't fully pass the standard and relabelled as sanding mask.
Sounds plausible, but would be rejected R95 filter medium as “somewhat resistant to oil”, P95 are “strongly resistant to oil”. As someone else pointed out may not be electrically charged like rated masks, which would make sense as omitting an extra step would reduce manufacturing overhead given the already constrained supply chain and production capacity.

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