Coarse air pre-filter

The K-FM coarse air pre-filter is designed for supply ventilation systems in shelters and protective facilities. Used together with a FyaR-type filter, it can also function as an air duct distribution box.

Installed before the air ducts, the K-FM unit provides effective pre-filtration of incoming air. When combined with the FyaR filter, the system removes dust, combustion aerosols, and other contaminants with efficiency up to 90%, ensuring clean and safe airflow for civil protection shelters.

Two models are available:

• K-FM-1 — for a single FyaR filter;

• K-FM-2 — for dual FyaR filter installation.

Operating temperature range: –50° C to +50° C; relative humidity up to 95%, excluding liquid water contact.