VacuMaid Filtered systems (formerly known as AstroVac) offer you a cost-effective and more "maintenance friendly" central vac units that provides performance and the convenience of either disposable bags (SR36 and SR38) or an inverted cyclonic filtration design (BV100, SR14 and SR60).
These units have the option yet do NOT need to be vented outside.
Our inverted bag units have several useful features which include:
A permanent filter that resists bacteria, mold, and mildew growth and captures particles as small as .3 microns
Have a dust retention of 99.6% efficiency
Have a convenient "Bonus" valve on the unit (SR14 and SR60 only)
Features our patented air channel that allows the bottom canister to have a specially-designed plastic liner which makes emptying the debris a breeze (optional for BV100)