HomeLatest ThreadsGreatest ThreadsForums & GroupsMy SubscriptionsMy Posts
DU Home » Latest Threads » Forums & Groups » Main » General Discussion (Forum) » How different masks prote...

Sun Aug 22, 2021, 09:35 AM

How different masks protect against Covid-19, and its delta and lambda variants

https://qz.com/2042410/how-effective-masks-are-against-the-delta-variant/
By Clarisa Diaz
Published August 5, 2021 Last updated on August 19, 2021

"Masks help prevent the spread of infection, both with the original Covid-19 virus, and the delta variant that is taking hold of the US, and other variants like the lambda variant and those that will inevitably arise.

While mask mandates were lifted in some locations of the country months ago, the US Centers for Disease Control and Prevention (CDC) recently reversed its masking recommendations even for the vaccinated. Its mask guidelines now recommend that people in areas with high transmission wear masks indoors while in public. Thatís because face masks reduce the transmission of the delta, lambda, and other Covid-19 variants as well as they do for the original Covid-19 virus. Mask wearing by vaccinated people reduces the risk of breakthrough infections."

**********************************************************************************************************

N95 masks offer the best protection against the Covid-19 virus and its delta variant. N95 masks filter 95% of particles in the air as small as 0.3 microns. The CDC says healthcare workers and other workers who work in hazardous conditions should have prioritized access to N95 masks. Only buy and use N95 masks if thereís an abundant supply in your area.

The next best option against Covid-19 is a KN95 mask, also filtering up to 95% of particles in the air as small as 0.3 microns in size. The difference between N95 and KN95 masks is how they are certified. N95 masks follow a US standard whereas KN95 masks follow a Chinese one. The standards are very similar, but the differences mean that N95 masks usually have headband straps, while KN95 masks have ear loops.

When purchasing KN95 masks, look to see if they meet requirements similar to those set by the National Institute for Occupational Safety and Health (NIOSH).

According to the CDC, these masks are suitable for situations that require prolonged close contact with people who do not live in the same household, or for people who are at increased risk for severe illness.

The downsides to KN95 masks are that they can be uncomfortable, require more effort to breathe, and may not be readily available."

Other mask types are reviewed at link

43 replies, 3565 views

Reply to this thread

Back to top Alert abuse

Always highlight: 10 newest replies | Replies posted after I mark a forum
Replies to this discussion thread
Arrow 43 replies Author Time Post
Reply How different masks protect against Covid-19, and its delta and lambda variants (Original post)
MisterNiceKitty Aug 2021 OP
Throck Aug 2021 #1
Mortos Aug 2021 #23
Throck Aug 2021 #30
MisterNiceKitty Aug 2021 #31
Arkansas Granny Aug 2021 #2
MisterNiceKitty Aug 2021 #9
Arkansas Granny Aug 2021 #13
MisterNiceKitty Aug 2021 #16
wnylib Aug 2021 #20
MisterNiceKitty Aug 2021 #32
Klaralven Aug 2021 #43
wnylib Aug 2021 #39
aggiesal Aug 2021 #15
mucifer Aug 2021 #40
northoftheborder Aug 2021 #3
HUAJIAO Aug 2021 #14
KS Toronado Aug 2021 #19
MisterNiceKitty Aug 2021 #33
Ocelot II Aug 2021 #4
MisterNiceKitty Aug 2021 #10
HUAJIAO Aug 2021 #17
Chainfire Aug 2021 #5
mucifer Aug 2021 #41
calimary Aug 2021 #6
iluvtennis Aug 2021 #8
MisterNiceKitty Aug 2021 #11
LuckyCharms Aug 2021 #7
MisterNiceKitty Aug 2021 #12
LuckyCharms Aug 2021 #22
MisterNiceKitty Aug 2021 #34
SergeStorms Aug 2021 #18
LuckyCharms Aug 2021 #24
speak easy Aug 2021 #21
OneCrazyDiamond Aug 2021 #25
cadoman Aug 2021 #28
Lonestarblue Aug 2021 #26
Hekate Aug 2021 #27
MoonlitKnight Aug 2021 #29
LuckyCharms Aug 2021 #35
MisterNiceKitty Aug 2021 #36
moondust Aug 2021 #37
MisterNiceKitty Aug 2021 #38
retread Aug 2021 #42

Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 10:13 AM

1. Mask seem to be like condoms.

Not as effective as people think.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Throck (Reply #1)

Sun Aug 22, 2021, 12:08 PM

23. Like masks, when condoms are used properly

they are very effective. Where did you get your information and why are you spreading falsehoods about the efficacy of masks?


"When used correctly every time you have sex, male condoms are 98% effective. This means 2 out of 100 people will become pregnant in 1 year when male condoms are used as contraception."

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Mortos (Reply #23)

Sun Aug 22, 2021, 12:18 PM

30. 98% is 98%

Same as for mask. Mask not perfect.

My observation is 70% of the population uses improvized fashion masks. So the N95 KN95 argument is moot. Most people who wear mask don't wear proper ones. The inventory is out there now so there's no excuse to not get an approved mask.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Mortos (Reply #23)

Sun Aug 22, 2021, 12:22 PM

31. now it's misinformation about two issues that both have been proven to work

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 10:34 AM

2. I've been using the KN95 masks for some time now.

Thay fit closely at the sides and chin and I can adjust the nose wire so they don't fog my glasses. Another plus for me is that they have enough stiffness to them that when I inhale, they don't suck up to my nose and mouth.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Arkansas Granny (Reply #2)

Sun Aug 22, 2021, 11:40 AM

9. I find I do have trouble breathing in those sometimes

especially when I have to run to catch a train. Also the strap around the ears can be painful at times. But I will try again to find the N95 masks.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Reply #9)

Sun Aug 22, 2021, 11:44 AM

13. I have seen mask extenders that hook to the ear loops and go around the back of your head.

A Google search gives many results.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Arkansas Granny (Reply #13)

Sun Aug 22, 2021, 11:48 AM

16. thanks - I did find the N95 on Amazon

will order a pack -

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Reply #16)

Sun Aug 22, 2021, 11:55 AM

20. Where on Amazon? In the spring,

before delta became widespread, they were easily available at low prices on Amazon. But when I look now, I can barely find any, and not the model I am looking for.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to wnylib (Reply #20)

Sun Aug 22, 2021, 12:25 PM

32. I would caution they are expensive in some cases

But I just did general search on N95

See if this link will work: https://www.amazon.com/s?k=N95&ref=nb_sb_noss_2

Options with the NIOSH certification also came up & some without.

I'm just nitpicking here but I hoped they would have more color options than white

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Reply #32)

Mon Aug 23, 2021, 07:46 AM

43. N95s appear to be back in stock at Home Depot

 

I had a few bought a decade ago for dust protection.

They should be worn for a number of common household tasks; working in unfinished basements or crawl space, spray painting, sanding, heavy vacuuming, mold removal, etc.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to wnylib (Reply #20)

Sun Aug 22, 2021, 01:08 PM

39. Thanks. I found a substitute for

the previous brand and model that I had.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Arkansas Granny (Reply #2)

Sun Aug 22, 2021, 11:47 AM

15. That's another difference ...

The article is behind a join wall, so I didn't read the whole story except for what is posted here.

KN95 has a fit requirement that apparently the N95 doesn't.
That may have been mentioned in.the full article.

But I'm no expert.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to aggiesal (Reply #15)

Mon Aug 23, 2021, 04:53 AM

40. The N95 requires fit testing to know you have the right size. Also, with N95 you

shouldn't have a beard.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 11:03 AM

3. I ordered a box of N95 masks.

They fit so tightly on my head (and my head and face are small) that I cut the elastic to go over ears instead of head. Also extremely stiff and the nose part fits so high on my nose that my glasses are in the way. Very disappointed. I like the overall stiffness - easier to breathe, but very uncomfortable around the edges. I couldn't wear more than a few minutes.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to northoftheborder (Reply #3)

Sun Aug 22, 2021, 11:47 AM

14. Many companies are making N95 masks now, Try a different brand.


I have many 3M, plus many from another American company which I am not allowed to mention because they contribute to right-wing politicians, plus Chinese KN95s with head bands that are on the CDCs approval list...

Reply to this post

Back to top Alert abuse Link here Permalink


Response to northoftheborder (Reply #3)

Sun Aug 22, 2021, 11:53 AM

19. Got my N95 at Home Depot

they're the HDX brand and have a metal strip to fold around the nose, very comfortable for me.
Elastic goes around head. They do offer a small size.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to KS Toronado (Reply #19)

Sun Aug 22, 2021, 12:27 PM

33. thanks!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 11:06 AM

4. N95s are easy to get now - Amazon has them.

I got a package, use them indoors where there are a lot of people (grocery stores, etc.). They are less comfortable than the blue medical ones or the cloth masks but I'll put up with them.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Ocelot II (Reply #4)

Sun Aug 22, 2021, 11:42 AM

10. +1

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Ocelot II (Reply #4)

Sun Aug 22, 2021, 11:48 AM

17. The 'blue medical masks" offer very little protection for the wearer, but WILL help protect

others around the wearer...

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 11:18 AM

5. For them to operate properly, there is a simple fitting and testing routine that you need to follow.

The N-95 is classified as a respirator as opposed to a "nuisance" or "dust mask." The fitting procedure only takes a minute, however it is worth knowing how to wear a N-95 properly. Since I do not presume to be a health expert, I will let you get the instructions directly from OSHA or NIOSH.


https://blogs.cdc.gov/niosh-science-blog/2020/03/16/n95-preparedness/

Reply to this post

Back to top Alert abuse Link here Permalink


Response to Chainfire (Reply #5)

Mon Aug 23, 2021, 04:56 AM

41. Takes more like 10 or 15 minutes if you start with the right size.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 11:20 AM

6. Good info. Thanks, MisterNiceKitty!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to calimary (Reply #6)

Sun Aug 22, 2021, 11:36 AM

8. Ditto! n/t

Reply to this post

Back to top Alert abuse Link here Permalink


Response to iluvtennis (Reply #8)

Sun Aug 22, 2021, 11:42 AM

11. you're welcome calimarry and iluvtennis

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 11:24 AM

7. I wear NIOSH approved N95 masks (however, they are not FDA approved for medical use).

You will be able to find N95's approved for medical use if you look hard enough, but I do not buy them since those are needed by medical workers.

NIOSH approved N95's are abundant, and you can find them with the head straps instead of the ear loops.

I like these types of masks because you can get an incredible seal around your face.

It is sometimes difficult to get a complete seal around the upper part of the mask, but usually I can get it almost completely sealed all the way around.

I remove my glasses when wearing one, because I can still see fairly well without them, and that is one less thing I have to wear on my head. Also, in case there is a small leak at the top of the nose, there are no glasses to fog up. Depending on the situation, I may put a surgical mask over the N95. If I REALLY feel at risk, I'll also either wear wrap around sunglasses (which don't seem to fog as much as my regular specs), and/or a plastic face shield.

I also wear gloves, and a lanyard around my neck which holds a small bottle of hand sanitizer.

I hardly go anywhere, but when I do go out, it is usually to a fairly risky place such as a semi-crowded waiting room, or a more heavily crowded hospital lab.

When I exit the risky environment, I sanitize my gloves and forearms. Then, I remove all of the gear. Then I remove the gloves and sanitize my hands, wrists, and forearms again.

EDIT: If you are having trouble getting a good seal around your nose, put some surgical tape on your mask and skin in the leaky areas. A doctor taught me this.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LuckyCharms (Reply #7)

Sun Aug 22, 2021, 11:44 AM

12. thank you

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Reply #12)

Sun Aug 22, 2021, 12:07 PM

22. My pleasure! Stay safe, we'll get through. n/t

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LuckyCharms (Reply #22)

Sun Aug 22, 2021, 12:27 PM

34. Thanks & yes indeed

Reply to this post

Back to top Alert abuse Link here Permalink


Response to LuckyCharms (Reply #7)

Sun Aug 22, 2021, 11:49 AM

18. I use two sided tape....

around the top of the mask to prevent fogging of my glasses. The metal reinforcements around the top of the nose never seem to provide an airtight seal. The two sided tape takes care of that problem.

I also have 3M N95 masks, but they're of the "duck bill" variety. I find these easier to breath through that the regular "cup" type, even the masks with the valve in them.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to SergeStorms (Reply #18)

Sun Aug 22, 2021, 12:08 PM

24. Great idea with the tape...

Thank you.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 12:08 PM

25. I've been using cotton cloth.

Not as good I know, but I am fully vaxxed, and I see all those disposable masks with their plastic as a problem for the future. No one recycles them.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to OneCrazyDiamond (Reply #25)

Sun Aug 22, 2021, 12:12 PM

28. I two-ply when I need to go cotton

Love my cotton mask wearing comrades! The most critical things are that you followed the science and showed you cared.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 12:09 PM

26. I have cloth masks with pockets in which I insert the common 3-ply surgical masks.

It adds another layer, though I find the cloth masks pretty hot. Of course, when itís 98 degrees outside, as it has been here, everything is hot!

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 12:10 PM

27. Just picked up a box of N95 masks at Costco yesterday....

As far as ďabundant supply in our areaĒ goes, thatís my standard: if Costcoís got it on an open shelf, you know thereís plenty.

Iím not looking forward to wearing them ó they are not comfortable.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 12:17 PM

29. If you want a comfortable mask that won't fog your glasses

It may look extreme but itís very comfortable. Replaceable filters. Kind of expensive but if you feel you need the level of protection and have to go in to an office or be around unvaccinated idiots for extended periods this is a good choice.

https://envomask.com/

I got one pre-vaccines and it was great. Thankfully I donít have to be around others for extended periods anymore.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MoonlitKnight (Reply #29)

Sun Aug 22, 2021, 12:29 PM

35. Thank you for this.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MoonlitKnight (Reply #29)

Sun Aug 22, 2021, 12:30 PM

36. that's interesting...

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Sun Aug 22, 2021, 12:37 PM

37. Link to CDC's list of NIOSH-approved N95's.

Reply to this post

Back to top Alert abuse Link here Permalink


Response to moondust (Reply #37)

Sun Aug 22, 2021, 01:02 PM

38. +1

Reply to this post

Back to top Alert abuse Link here Permalink


Response to MisterNiceKitty (Original post)

Mon Aug 23, 2021, 07:27 AM

42. I am fully vaccinated. I never stopped wearing a K95 when entering any store. With the rise

of the Delta variant I wear a N95 and a KN95 over it. Glasses provide some protection for my eyes.

Perfect 100% protection? No!

Before vaccination I did curbside pickup and as immunity provided by Moderna wanes I am considering using it again. Its either that or a level A Hazmat suit.

Reply to this post

Back to top Alert abuse Link here Permalink

Reply to this thread