The CFT-AS1000 is a portable HEPA Air Scrubber with variable speed control and max airflow of 1000m3/h. it is equipped with a high efficiency 2-stage filtration system, the primary is a coarse filter, secondary with a large size professional HEPA 13 filter, which is tested and certified with efficiency of 99.99%@0.3 microns, the CFT-AS1000 has double warning lights the red light indicates the filter is broken, the orange light indicates the filter is clogged. The CFT-AS1000 is light weight and is manufactured with rotomolded plastic for maximum durability, it can be used as an air cleaner and a negative air machine. Model CFT-AS1000 Voltage (V/Hz) Single Phase, 230V Power 230W Current 1A Airflow (max) 1000m3/h Primary Filter Disposable Polyester Media H13 filter are 3.5m2 Noise level 2 speed 58/65 dB(A) Dimensions 460 x 360 x 460mm Weight 19kgs