KN95s are among the best masks you can buy to protect against COVID-19

KN95 Face Mask 25 Pack




The white and black masks are slightly cheaper, at $1.59 per mask, while the blue and pink land at $1.79 per mask.
Now, the color of a mask won't impact its efficacy; it's only a matter of aesthetics. But the four colors here are white, black, blue and pink. Most importantly, this particular brand was been authorized by the CDC for emergency use. Not all the KN95s you'll see on Amazon and elsewhere have been. A "Yes" in the final column on this CDC website denotes that a mask filter been tested to 95% efficacy; a blank cell means it has not. These masks pass that test.
There are definitely cheaper masks on the market, but if you want a variety of colors, this is your best bet for now. Otherwise, if you're OK with white and want N95s — the gold standard for masks preventing the spread of COVID — you can get these Kimberly-Clark N95 masks for about half the price per mask. And they're made in the United States, too.

ga10 wrote:https://www.amazon.com/KN95-Black-5-Layer-Filter-Efficiency%E2%89%A595/dp/B08V4TJGRQ/ref=sr_1_4?dchild=1&keywords=kn95+face+mask&qid=1630980192&s=industrial&sr=1-4

Cái này 50 masks for $44 thì là better deal nhưng có ai xài hiệu này chưa?

ga10 wrote:Gà đọc mấy cái "bad reviews" thì thấy có người complained tại sao mấy cái KN95 masks này có lỗ tùm lum hết.  Is that supposed to be the design?  Lỗ tùm lum hết thì mình breath in virus thì sao?