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Shop > MD Manufacturing > M85

Flo-Master Central Vacuum for Homes Up To 8000 Sq Ft

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The Flo-Master M85 built-in vacuum, with 650 Air Watts, is the most powerful mid-range vacuum under 20 amps available today, so rugs, drapes, furniture and floors receive deep-down cleaning every time they're vacuumed. By locating the Flo-Master power unit outside the living area, all germ-laden air is exhausted outside the living area – not recirculated throughout the home as with portable vacuum units.

The experience of cleaning with a powerful, built-in vacuum system will save tremendous time and effort. Simply plug the light-weight hose into any conveniently located outlet throughout the home and even the most difficult cleaning tasks become a breeze - all types of floors and carpets, stairways, ceilings, corners, drapes, crevices and furniture are no problem. Vacuum over a thread once and it's gone. Animal hair is no challenge. The Flo-Master M85 has a unique combination of a relatively low cost, low maintenance, and high value. Suitable for homes up to 8000 square feet, the Flo-Master M85 immediately adds value to any home.

Item # M85

$519.95
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MD Manufacturing

CFM vs. Waterlift

CFM is defined as the Cubic Feet of Air per Minute that is moved through a specific size opening. In the vacuum industry, this is usually expressed as a standard size of two inches. Waterlift, on the other hand, is the vertical distance that same power source (a vacuum motor) is able to lift a column of water up a sealed tube (the water creates the seal), through the power of suction.

As the size of the opening (orifice) gets smaller, the waterlift increases and CFM decreases. Conversely, as the opening gets larger, the waterlift decreases while the CFM increases. Depending on the power unit these differences can be quite substantial.

Therefore, it becomes imperative to know how the performance of each individual power unit is effected by any one orifice within a particular system.

AirWatts vs. Orifice

AirWatts or "Cleanability Rating" is defined as CFM at a given opening (orifice) multiplied by the waterlift at that same opening, then divided by 8.5.

The most critical measurements are those representing the smallest size opening through which air is flowing in any particular system. Therefore, being able to calculate the AirWatts of each individual unit and knowing the actual orifice of each specific tool makes it possible to select the power brush best suited for the needs of that system. In essence, you are able to create the optimum package for your individual requirements.