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The SAAF PRU and RU contain all components needed to purify an enclosed room. The SAAF RU recirculates air inside the room, while the SAAF PRU both pressurises and recirculates air inside the room. AAF's patent-pending filter sealing design prevents bypass and wasted energy, and provides the cleanest air.
The SAAF Front Access Housing is designed to hold one 44 - 46 mm deep prefilter, followed by gas-phase cassettes. The design includes the cassette SAAF Seal High Integrity Sealing System to prevent bypass and wasted energy, and to provide the cleanest air.