Respirators of protection class FFP2 capture at least 94% of airborne particles up to a size of 0.6 μm / FFP3 offer the greatest possible protection against breathing air pollution. With a total leakage of up to 5% and a required protection of at least 99% from particles up to a size of 0.6 μm, they are able to filter toxic, carcinogenic and radioactive particles. These respirators can be used in work environments in which the workplace limit is exceeded up to 30 times the industry-specific value. They are used, for example, in the chemical industry.