Why is a central vacuum better than a HEPA canister or upright?
All uprights and canister vacuums exhaust dust into the home. The exhaust from a HEPA filter is a fine micro dust. It is not possible to stop all dust from passing through the filter otherwise the air flow would be cut off and no vacuuming would occur. Also the HEPA filter cuts down on the air flow, hence the cleaning power and is expensive and has to be changed frequently. The HEPA vacuums do exhaust less but the dust that gets by the HEPA you are breathing! A central vacuum system exhausted to outside.
