N95 or N99: Which Mask to Buy for Coronavirus - Shopzal
Apr 11, 2020·N95 vs N99: which one is better? If you use N95 mask, it should filter out 95% of dust and particulates in the air. However, N99 masks will filter 4% more which means 99% of the polluted particles. If you think N99 is the one that you should buy, don’t decide yet. There is more you should consider and one of them is breathing resistance.