Pig Extractor 36 ? The Pig Extractor series of portable air cleaners is so named because of its resemblance to a pig and it is built tough. Ideal for bringing areas of renovation job sites under negative pressure to contain dust and odor. The unit is available in 4 configurations; HEPA-only and HEPA with deep-bed carbon filters in 24, 28 and 36 pound options. Dimensions are 25" long x 15" diameter and 19" high making this unit a convenient fit for vehicles. The variable speed control allows for adjusting air flow to the application with a maximum of 450 CFM available. The housing is painted steel and features a 12-inch intake collar.