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Which mask is most effective? Comparison of Mask Standards, Ratings, and Filtration Effectiveness

Mask standards can be confusing: N95, KN95, FFP1, P2, or surgical mask? This quick run-down covers mask types, mask ratings, and their effectiveness at filtering particles.

First off, let’s start with mask types (or certification types). In general, there are 3 (or sometimes 4) types of commonly used, disposable masks. They are single-use face masks, surgical masks, and respirators.