The HEPA air purifier is a heavy-duty portable filtration system which can remove some particles in the air, including mold, dander, dust, pollen, drywall, and other debris as small as 0.3 micrometers. The air purifier utilizes one pre-filter and a HEPA filter. The pre-filter can assimilate larger particles and the HEPA filter can assimilate smaller particles to create a cleaner environment. The housing is made of high-quality PPT materials, which is not easy to break and can be used for a long time. This air purifier can be used in many occasions, such as interior decoration, construction site, flood repair and so on. It's a good choice for you. Don't hesitate to buy it now!FeaturesCertified ETL by Intertek Two-stage filter system: pre-filter and a HEPA filter. Remove harmful airborne particles High quality PPT housing for long service time Removable dust cover for isolation of dust Pre-filter and HEPA filter for capturing smaller particles Non Marking and Anti Skid Rubber Feet for Secure Placement Covers up to an area of 500-2000sq.ft GFCI outlet allows daisy-chaining Heavy duty portable filtration system Grooves on the sides for wires placing Variable Speed Control Switch, Filter Change Light Indicator Overcurrent protector, the power supply exceeds 12AMP, automatically tripMaterial: PPT Color: blue Overall Dimensions: 25''W x 16.5'' D x 25'' H Net Weight: 39 lbs Certification: ETL Power: 1/3HP Area : 500-2000sq.ft Air flow: 150-500CFM Motor speed: 2950RPM Wire length: 25ft Plug: three-pronged plug Voltage: 115V/60HZ Package includes: 1x Air purifier 1x User Manual