Bests & Worsts Reviews from Amazon

Don't listen to reviews complaining about holes. There are some perforations around the adjuster wire for the nose, but if you create a proper seal those won't matter since they are above the seal. The other perforations are where the breathing membrane is -- it's not actually a hole, the filter is there but the mask is thinner to let air through. The masks seem to be properly designed. The masks run small compared to some other KN95s - I must say that for me they actually create a better seal than the bigger types. You have to learn to adjust the wire in them around the shape to your nose. Like any respirator it has to be fitted properly, so there is no airflow on the sides or upwards. Most people who wear KN95 or N95s don't fit them right, so they don't get the full benefit. I can't double-check the claim about the filtering capacity, but I'm going to trust that they follow the KN95 standard. A KN95 is not an N95, so some reviewers here seem to be confused. KN95 is the Chinese standard for the filter-- it is the material inside, the filter (not the mask itself) that is rated KN95. If you don't like the shape or size of them, you can look for other KN95s that are bigger. The KN95 filter itself is roughly as efficient as the N95 filter at filtering out particles - what is different is the exact method how the filtering is tested and under what pressure.