www.bvc.co.uk/100yrs.html The Vacuum Cleaner from which
a great Industry was created first saw the light of day
in the year 1901, when a Mr. H. Cecil Booth, turned his
attention to the creation of a mechanical method of removing
dust from carpets and house furnishings by
means of air suction.
www.http://en.wikipedia.org/wiki/HEPA HEPA filters are composed of a
mat of randomly arranged fibres.
The fibres are typically composed of fiberglass and possess
diameters between 0.5 and 2.0 micrometer.
