The AA-350-HEPA is intended to remove particles, bacteria, and viruses (including COVID-19) from the exhaust air of your Aseptico GO! portable dental unit at an efficiency rate of 99.97% at 0.3 microns. This helps ensure a cleaner environment for you, your staff, and patients. This innovative, compact filter system is designed to be quickly and easily connected to the suction system without tools. A spare filter and impact-resistant carrying case are included, meaning that the AA-350-HEPA may be taken anywhere your portable practice takes you!