Abatement Technologies CAP100-UVP Air Purifier Three Stage Air Purification CAP100-UVP features a unique two-stage filtration system that effectively captures particulates and is economical to operate. The CAP100-UVP model has 20" x 25" filters and is designed for systems up to 4 tons (1,600 cfm); 5" pleated ASHRAE MERV-11 filter for excellent filtration. CAP100-UVP features an inexpensive one-inch deep prefilter that removes larger particles and extends the life of the more expensive final-stage filter. CAP100-UVP captures dust, animal dander, pollens, soot and mold spores. CAP100-UVP features a high output UV-C lamp for even greater control of viruses