What are N95 and FFP2 face masks?

As more Covid-19 variants emerge across the globe, attention has once again turned to N95 and FFP2 face masks.

KN95 Protective Face Mask. Protective Level: KN95 | N95 | FFP2 | P2. 20PCS x KN95 Face Mask. 5 layer filtering, ear-loop, built in bridge of nose can

20PCS/Box KN95 N95 FFP2 P2 Protective Disposable Face Mask CE 5 Layers

3M Particulate Respirator - N95 - Earloop Face Mask

Protective Medical FFP2 NR D Face Mask With Extra Sponge-KINGFA

What Are FFP2 Masks? FFP2 Respirators VS Alternatives

How to Wear a Face Mask — Your Guide to the Do's and Don'ts

N95 vs KN95 vs FFP3 & FFP2 masks – what's the difference?

N95 masks, KN95 and FFP2: a comprehensive guide to the differences

P.Air N95 Masks - Box of 40 masks - Optrel USA

FFP2 and N95 Masks to Help Protect You From COVID-19