Moldex AIR Seal FFP masks offer reusable protection with a soft foam seal for a secure, comfortable fit. The AirWave filter provides low breathing resistance and long-lasting performance, supported by a durable DuraMesh shell and adaptive ActivForm design. FFP3 protection against harmful and toxic dust, fumes and water/oil-based mists/aerosols. 20 x WEL (Workplace Exposure Limit).