There is a visual misconception that happens to most people when it comes to identifying what objects will do them harm. The normal train of thought is…”if I can’t see it, it won’t hurt me.” In essence, nothing could be further from the truth. Tiny, airborne and surface mounted sub-micron sized viruses and bacteria are invisible to the naked eye but can often be deadly to humans. Finely ground dust from any mineral source or pollen, ragweed and grasses range in size from 100 microns down to less than 1 micron in size. You can only see down to about 20 microns with the naked eye.

Ingestion of small amounts of tiny airborne pathogens and allergens over long periods of time can create severe and chronic health issues. And for the under 3 years, over 60 population the ratio of amount inhaled vs time may be shortened dramatically. Of course, for those individuals who are allergy sufferers or have weakened immune systems due to injury or cancer, even small amounts inhaled over a few days can create significant health challenges. While you can’t control the elements of the environment, you can control your personal environment.

Pure Air Systems has been manufacturing commercial grade, certified HEPA and Carbon based air filtration systems since 1985. For over 27 years PAS has provided high performance HEPA systems to reduce and remove these fine, harmful airborne particulate in a wide array of applications. Commercial, institutional, industrial, medical and residential customers around the world have relied on the performance of the PAS HEPA units to help them maintain a clean, healthy environment.

Air filters, the type you put in your heating/cooling air handler system, have been around for over 70 years. Originally made from metal strands they evolved to fiberglass media then cotton and now man made fibers. They became more efficient over time. However, they also became more resistant to air flow and created adverse air flow restriction problems for the heating/cooling systems. In order to actually remove the small, less than 10 micron sized particles with any efficiency ( up to 90% and greater removal) you require a HEPA media filter. The filters used in most HVAC systems today have an efficiency of less than 20% on these smaller, more harmful particles. And, some furnace filters have almost no effectiveness on anything smaller than 20 microns.

There is a reason that hospitals, clean rooms, surgery rooms, optical manufacturers, food processors, micro-chip companies, medical and commercial laboratories and many other environment-critical operations ONLY use HEPA filters or air filtration systems using HEPA filters. General duty air filters, electronic air cleaners and ionizers are basically useless when it comes to actually removing airborne particulate. The only way to deal with real airborne pathogens and allergens is to use HEPA filtration systems. Real Dust, Real Filters.

For more information on the complete line of  PAS HEPA and Carbon based air filtration systems go to our website at: You can also follow us on Twitter @pureairsystems or like us on Facebook. Of course you can always call us at: 800-869-8025.

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About the Author: Don Musilli

My name is Don Musilli. I started Pure Air Systems in 1985 and then sold it in 2006. I continue to consult for PAS and write their blog and control their Twitter account. I also, on occasion, make changes to the website. The company is now almost 26 years old and has been a major player in offering commercial grade, high performance HEPA and Carbon based filtration systems for the commercial, institutional, industrial and residential markets.

I currently reside in Englewood, Florida where I write blogs and do social media marketing for a number of clients.

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