Dust Director HEPA Certified Filter
Product No. / SKU: 75H HEPA
HEPA FILTER CERTIFICATION: Dust Director certifies that every replacement HEPA filter is individually tested for efficiency of 0.3 micron particles and as referenced in EPA and OSHA (29CFR1926.58) definitions for HEPA filtration, are “capable of trapping and retaining at least 99.97 percent of all monodisperse particles 0.3 microns in diameter of larger.”
Fits All Dust Director® Vacuums: DD1000, DD1200, DD2000, DD2400, DD3900, CP2400. Dry Use Only.
What does the term HEPA mean? HEPA is an acronym for “High Efficiency Particulate Air” that refers to a filter that is manufactured, tested, certified, and labeled in accordance with current HEPA filter standards. There are several sub-classes within the HEPA classification. The minimum HEPA category requires the filter to capture 99.97% of the 0.3-micron (0.000012-inch) particles in the air passing through the filter.
What makes a HEPA filter so efficient? The ultra-fine, glass-fiber medium captures microscopic particles that can easily pass through other filters by a combination of diffusion, interception and inertial impaction. To meet the minimum requirements of a HEPA filter, the filter must be tested and certified to prove that it will remove at least 99.97% (9,997 out of 10,000) of particles 0.3-micron in diameter from the air passing through the filter. Particles that size are about 300 times smaller than the diameter of a human hair, and 25 to 50 times smaller than we can see. To a HEPA filter, catching a one-micron particle (1/1,000,000 of a meter) is the equivalent of stopping a cotton ball with a door screen.
Authentic Certification Number: Individual testing of the complete filter — in accordance with recognized industry standards — is the only way to ensure the performance and integrity of a filter. Each “certified” Dust Director® HEPA Filter includes the following to meet our quality assurance standards and your guarantee of authenticity: Filter efficiency, pressure drop, rated air flow, serial number and a lot number for unit tracking.
Filtration Efficiency Rating: 99.97% Efficient @ 0.3 Microns.
Sold individually, price per each, 12 per case.