The DefendAir HEPA 500 filter uses HEPA filter media with an efficiency rating of 99.97% against 0.3-micron oily aerosol particles, and provides 250 to 500 CFM, the typical airflow level demanded on restoration jobs. One air scrubber rental will filter a 10,000 cu. ft. room (35x35 with 8-foot ceilings) with 3 air exchanges per hour. With user-friendly and versatile features, the HEPA 500 is ideal for handling indoor air quality needs on every restoration job. Any job that involves sewage, mold, or fire damage clearly involves significant amounts of particulates and smelly gasses which are a direct result of the damage itself. In a water damage restoration environment, the high-velocity airflow needed for drying can stir up particulates that have settled in carpet or on other materials. The HEPA 500 can address indoor air quality quickly and efficiently, and help restore any environment to a pre-loss condition - the ultimate goal of every restoration job. For more information on best practices and water restoration regarding the HEPA 500 refer to the ANSI/IICRC S520 standard. Also known as an air purifier or Air Mover