B1000 is a portable HEPA air scrubber with variable speed control and max airflow 1000m3/h. It 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. B1000 has double warning lights, the red light warns filter broken, the orange light indicates filter clog. This machine is stackable and the cabinet is made of rotomolded plastic for maximum durability. It can be used as an air cleaner and a negative air machine both. Ideal for home repair and construction sites, sewage remediation, fire, and water damage restoration