Respiratory Protection - Screw-Type Filters for Full Face Mask BRK 820
The filters are tested and approved to EN143 / EN 14387. Offer very low breathing resistance. Their lifespan depends on the toxicity, humidity and air consumption of the user. Measurements differ with application so it is impossible to predict the working lifespan. Filter exhaustion can be detected as follows:
-Gas filters: appearance of odours, tastes or irritants in inhaled air.
-Particle filters: increase in breathing resistance.

Storage times for unused gas and combination filters (kept sealed in manufacturer's packaging) 6 years. Particle filters can be stored for 10 years.

Individually sealed in PE bags and packed in outer boxes.
Protection level A: Vapours from organic compounds with boiling point > 65 °C
Protection level B: Inorganic gases and vapours e.g. chlorine, hydrogen sulphide
Protection level E: Sulphur oxide, acidic gases
Protection level K: Ammonia
Protection level AX: Gases and vapors from organic compounds with boiling point < 65 °C, low boilers in groups 1 and 2
Protection level Hg: Mercury vapours
Protection level NOSt: Nitrogen oxides, including nitric monoxide and particles P3
Protection level P 1: Particles (fumes, smoke, dust) from inert substances
Protection level P 2: Particles from non-toxic substances
Protection level P 3: Particles from toxic substances

Description Gas filter
Type AX