The AP-600 portable is a variable-speed UV-only unit designed for areas as large as 300 square feet. The unit has a 10" x 10" x 1" washable electrostatic prefilter to reduce dust build-up on the lamps. The CFM produced ranges from 10 to 100 and it is available in 120-V/60 Hz. The unit is fitted with 2, 9-watt, germicidal UV lamps with a wavelength of 254 nm and lamps are rated for 8,000 hours. The unit weight is 10 pounds. This unit is ideal for small areas requiring the reduction of of airborne and surface bacteria, viruses and organisms.