This High Capacity HEPA IPM Vacuum from Atrix International is a dry particulate vacuum system that holds 5 gallons. It is a great choice for large volumes of rodent droppings, dry chemical, cockroaches, bed bugs, bat guano infestations, termites and fine particles. There is a HEPA filter cartridge in this vacuum that reduces the risk of bacteria and virus dispersion. It will contain most odors in the system and this cartridge filter makes changing it clean, safe and easy. HEPA Efficiency is at 99.97% @ .3 micron.