Here is the answer to your dusty exhaust from your central vacuum unit. The Centra Filter eliminates virtually all dust from your exhaust. This filter cleans down to 1 micron sized dust particles and allergens.
NOT TO BE USED WITH CYCLONIC STYLE OR BAGLESS SYSTEMS. THIS WILL BLOCK YOUR MOTOR EXHAUST AND MAY DAMAGE YOUR SYSTEM!
It is best to change out the Centra Filter every three times you change you change out your filters or when the Centra Filter changes to a dark color. Help maintain a cleaner environment in and out of your home.