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Fl LTRATION SYSTEM
(optional)
Royal's filtration system for over 99.9% "fresh" exhaust air. This system
assures you that fine powdery dust will not be blown back into the air you
breathe or onto your furniture and carpets again.
*Examine the Five Layers of Filtration in Your Tank Vacuum
Circulating air lifts dust and dirt from your carpets and transports it
through the hose to a 175 square inch double layer disposable paper bag
(I)*.
The second layer of the paper bag contains electrostatically charged
fibers
(2)*.
The air passes through the double layered paper bag, depos-
iting dirt and lint. It then passes into a finely woven cotton twill cloth bag
(3) with 160 square inches. The air finally passes through a double-sided
filter pad. The MICRO FRESH filter pad consists of an electrostatically
charged fiber material (4) attached to a reticulated flexible urethane foam
(5). When used as a system, the air expelled at the rear exhaust is over
99.9% "fresh".
*Not included on all models.
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