The HEPA filter inside the Heavy Duty HEPA Vac System has a 99.97% efficiency at 0.3 micron. It will contain very fine dust inside the drum and not back into the atmosphere. When the filter gets plugged, you will need to change it. In this video, I go through the steps for installing a new HEPA filter.
John Ball
Application Engineer
Email: [email protected]
Twitter: @EXAIR_jb
