What is the difference between FFP2 and FFP3 Masks?

FFP2 & FFP3 face masks are European classes of respirators, tested on the direction of inspiration (outside to inside) and take into account leakage to the face and filtration efficiency.

FFP2 face masks meet the guidelines from The World Health Organisation for protection against Covid-19. FFP2 masks have a minimum of 94% filtration percentage and a maximum of 8% leakage to the inside. 

FFP3 face masks are the most effective at filtration, with a minimum filtration of 99% and a maximum leakage of 2% to the inside. 

Both FFP2 and FFP3 masks are effective at protecting the wearer from viral transmission and have a typical lifespan of 3-8 hours depending on environmental factors.

FFP2 and FFP3 face masks can come either with or without a valve. A valve helps the wearer breathe more easily, it also reduces the build up of moisture, lengthening the lifespan of the mask. It should be noted however that the use of a valved mask is not recommended for use in environments where you are trying to protect the wearer form Covid-19.