Expert testing shows that this type of mask is as effective as N95!

There are all kinds of masks on the market, N95, KN95, medical, non-medical, cloth, and cotton. Consumers have never had a purchase standard.

Canadian media CBC reported that employees of the company’s Marketplace conducted rigorous tests on a number of common masks and found that some masks work well, but some masks have almost no effect on preventing the spread of new crown virus particles, and even masks will even the virus spread to other masks.

Best performing: three-layer mask

Blue disposable medical mask

White cotton mask with polypropylene sandwich

The test found that in addition to the recognized blue medical masks, the filtering effect of polypropylene masks and N95 are almost as good.

Polypropylene is a kind of melt-blown non-woven plastic fabric (Melt-blown, non-woven polypropylene, NWPP for short), which is commonly used in medical masks and N95 masks.

The testers inspected a mask with a polypropylene inner layer and a cotton outer layer on the market and found that its filtering effect was almost the same as that of N95.

In addition, there is no doubt that the filtration efficiency of the blue three-layer medical disposable mask is still the highest, and most medical masks contain NWPP fabrics.