PORTABLE DUST COLLECTORS 

One point about air to cloth ratios:

Air to cloth ratios are an important concern when evaluating and comparing dust collector performance. A "low" air to cloth ratio, by itself, does not make one unit better than the other. When comparing other portable dust collector units to our unit specifications, don't make decisions based on air to cloth ratios alone. The majority of other portable dust collector units use a filter cartridge that was originally designed for use in relatively clean air environments. They require 2.5 to 1 air to cloth ratio or lower because the filter media pleats are tightly spaced, and the metal mesh inside and out reduces the "open area" that restricts air flow. Our filter media pleats are wide spaced, and no expanded metal is used on the outside, so dust doesn't get trapped between the pleats or behind the expanded metal. Our elements are designed for use with dirty air streams, to be cleaned continuously with pulsed dry compressed air during operation. Which do you think would work best for your application?