Mask ratings can be confusing: N95, KN95, FFP1, FFP2, P2, or surgical mask? This quick run-down of mask specifications covers mask types, mask ratings, and their effectiveness at filtering particles. Let’s begin by discussing mask types or certification types. There are generally three commonly used, disposable masks: single-use face masks, … Continue reading Masks Ratings, Standards, and Effectiveness Comparison(N95, KN95, FFP1, FFP2)