Face Masks in UK. By using our extensive suppliers network we've managed to bring these face masks to UK and make them available for our customers. All respirator masks are graded based on how much protection they offer. Each country has a different grading system for the equivalent masks. FFP2 is the EU version, N95 is the USA version and KN95 is the version used in China. The KN95 standard means that it stops 95% of particles of 0.3 microns or larger. Quick order processing and dispatch.