Category Archives: vacuums

Hepafilters – What Types of Particles They “Catch”

HEPA filtration is defined as catching 99.7% of particles .3 microns or larger. But what types of particles are those, really ? Particle size chart Most bacteria, all pollen, all hair, to all intents and purposes no virus’ and mixed …

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Back Pack Vacuums – how to test vs uprights.

There is all kinds of test literature telling us that back pack vacuums, besides being faster, also do a better job of lifting soil from carpets than upright vacuums in commercial cleaning environments. Noone believes it – no beater bar …

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