These filter classes are minimum requirements and simply serve as a guide. It is the wearers’ responsibility to make sure the breathing apparatus conforms to the requirements in terms of hazardous materials and concentration before use! Activity Harmful substances Protection class FFP 1 FFP 2 FFP 3 Wood processing Softwood: cutting and sanding Fine particles, wood dust ■ Hard wood (oak, beech, tropical woods, etc.): cutting and sanding Fine particles, wood dust ■ Brushing/sanding paint Fine colour particles ■ Brushing/sanding paint (paints containing chrome) Fine colour particles ■ Soluble paints containing copper/chrome/arsenic Fine paint mist ■ Construction and ancillary building industry Cement work, plastering, tiling, roofing Cement, plaster, tile or brick dust ■ Masonry: cutting, drilling, demolition ■ Asbestos: short periods of work Fibres ■ Roof insulation: glass and mineral fibres Dust and fibres ■ Bodyfillers/stopper: Grinding Dust ■ Welding Welding aluminium and stainless steel Metal and aluminium oxide fumes ■ Brazing Fumes ■ Metalwork Metal: drilling, grinding, milling, angle grinding Metal dust ■ High-alloy steels and stainless steels: drilling, grinding, milling, angle grinding Metal dust ■ Waste disposal and cleaning Refuse separation and disposal Dust, fungi ■ Medical waste disposal Bacteria, spores ■ Sweeping floors Dust (non-toxic) ■ Radioactively contaminated particles Dust ■ Agriculture Animal epidemics and treatment of animals with diseases Bacteria, viruses ■ Work with fungal spores Spores ■ Work with hay, grain and flour Dust ■ Medicine/care/health Allergies, pollen, household dust, animal fur Dust, particles, spores ■ Bacteria, viruses, infections, legionella bacteria Bacteria, viruses ■ uvex silv-Air Areas of application 166
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