The entire GIF Active Cassette Ceiling is designed as an area-active, modular cassette construction and performs both exhaust air functions above cooking appliances as well as air supply functions outside the extract air areas. The active cassettes serve as aerosol separators on the exhaust air side according to VDI 2052 and EN 16282-6 and form a large-scale exhaust air area. Moreover, flame propagation safety can be demonstrated by several tests.

The active cassettes are only manufactured from AISI 304 stainless steel and reach the highest degree of interception (up to 97%) due to very tight manufacturing tolerances. The exhaust flow velocity above the active cassette is so low (0.08 m/s) that the few remaining particles, which have not been captured in the separation chamber, drop back on to the top of the cassette surface by mass inertia.

All active cassettes can be removed from the ceiling grid simply by pushing or pulling the rows. Therefore, the GIF Active Cassette Ceiling can be removed from virtually any location almost entirely (≈ 98%) and be cleaned in any industrial dishwasher. As a result, climbing on kitchen equipment is not necessary and hygienic cleaning is guaranteed. Due to its fully reversible construction this unique modular system offers highest transparency and hygiene. If used for bringing in supply air the GIF Active Cassette allows for an area-wide and turbulent free fresh air intake, thus following the desired principle of layered airflow (not turbulent), working permanently wit high energy-efficiency.
Even at high air volumes and low inflow speeds is an indirect fresh air flow without induction impulse ensured.

Active cassettes for exhaust- and fresh air areas are identical, hence fully interchangeable in any configuration.