Dust masks are divided into 3 levels
Feb 04, 2023
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KN100, KN95, KN90. The best is KN100 grade, the protection rate of ultrafine dust is more than 99.97%.
KN100 grade dust masks are the highest protection masks in China, KN100 grades. In China, KN series is professional dustproof, good product protection dust diameter above 75nm can reach.
