High Efficiency Particulate Air


What is HEPA Filtration?

According to NIOSH (National Institute for Occupational Safety and Health), a true HEPA filter is one that can trap 99.97 percent of dust particles that are 0.3 microns in diameter.

To put 0.3 microns in perspective, a typical human hair is roughly 50–150 microns in diameter, so a HEPA filter is trapping particles several hundred times thinner!

This does not mean that HEPA filters cannot trap particles smaller than 0.3 microns, because they do! A HEPA filter is comprised of a mat of interlaced dense fibers arranged in many folds and layers to create a fibrous maze to trap particles.  An air flow source, typically a blower fan, pushes the particles through this dense web of filter media and traps particles smaller than 0.3 microns by a combination of three different mechanisms; direct impaction, interception and diffusion.

IMPACTION - Large particles, such as dust, mold, and pollen, travel in a straight path, collide with a fiber, and are absorbed by impact.

INTERCEPTION - Particles are caught as they travel along the air stream, pass too close to the filter fiber and stick to the side of one of the many fibers.

DIFFUSION - As the air stream slows the remaining randomly moving particles crash into and bounce off each other and some are pushed into the filter fibers.


HEPA filtration is specifically used in vacuum cleaners, household air filters, negative air machines and respirator filter cartridges.  Studies have shown that standard household vacuum cleaners release tiny particles back into the air. So, are you really cleaning your home when you vacuum, or are you just redistributing the dirt and dust? If you have allergies and/or asthma this “cleaning” you are doing may worsen your condition. Investing in a TRUE high quality HEPA vacuum will eliminate the redistribution of dust and you will truly clean your home – or as we like to say “HEPATIZE your home!”

HEPA vacuums and HEPA air filtration is used every day in thousands of places, including:

  • Medical settings
  • Remediation jobsites for mold, asbestos or lead
  • Pharmaceutical settings
  • Electrical and manufacturing plants
  • Offices and waiting rooms
  • Residential homes

Please note that inventory is being added daily to the website, and we appreciate your patience as we bring your favorite products to your fingertips. If any time you do not see what you are looking for, please just contact us - we may have what you need in one of our warehouses or we will gladly get it to you! Additionally, if you see an in-stock product listed elsewhere at a lower retail price, just let us know, and we will do everything that we can to offer you a better price!

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