To remove dust-particles from the cabin-air, Freshfilter can supply dust filter-elements. The dust filters must be placed at the most polluted side of the overpressure unit, since their function also consists of protecting the next (fragile) carbon- and HEPA filter-elements.
Dust filter-elements have a life span of 5 month at maximum. When a new sanitation project is entered, always mount new elements. When (noticeable) dust-particles enter the cabin, you must replace the elements as well.
Freshfilter can supply dust filter-elements in the P1, P2 and P3 (HEPA) gradations:
F5 | Harmless crill: MAC – value > 10 mg/m³: F5 in conformity with NEN779 |
F7 | Harm causing crill: MAC – value 0,1 to 10 mg/m³: F7 in conformity with NEN779 |
H13 | Toxic crill: MAC – value 0,1 mg/m³ or less: H13 in conformity with EN1882. (e.g asbestos, weldingvapor, glass: filaments or dust-particles, copper vapors.) |
Used elements are chemical waste! Removing elements from the overpressure-unit must be done only after finishing the sanitation project and before the transportation of the materials. Always use appropriate protection when removing filters.
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