Features a four-stage filtration system, allowing for longer life of the filters, especially the HEPA filter placed at the vacuum's exhaust. EMI / RFI suppressed. Weighs only 18 pounds, portable and easy to use. Features a 2 1/4 gallon collection capacity. Small enough to allow for easy storage, standing only 16" tall and only 12" wide. Quiet for any environment, reaching a sound level of only 59 dB(A). 87 CFM and 102'of waterlift.