Keeping employees and customers safe in buildings, stores and other enclosed spaces will be a major part of returning to the new normal. Aside from making desks and work spaces at least 6 feet apart the ability to maintain some form of control over the ventilation systems would be the next major hurdle. The standard HAVC system in residential and commercial building is designed to move the air through return air and supply air ductwork and keep the room cool or warm. The types of filters normally used in these systems are what we call “general duty” air filters. Meaning they will remove large particles, dust and some smoke, but are not really capable of removing anything close to the size of viruese which are down to .005 microns in size. Basically a billionth of an inch.

Pure Air Systems has been making fan powered, commercial grade, HEPA air filtration systems since 1985 and has seven different configurations and air volume sizes to meet most needs in the commercial, institutional and industrial markets. Since its inception, PAS has provided a unique adaptation of their systems so they can be used in a partial by-pass configuration. This allows the HEPA systems to be connected to the main return air duct in a partial-connection taking a portion of the return air and putting in through a 3-stage filter system including a prefilter, carbon media pack and a scanned 99.99% HEPA filter. Using this concept allows for partical cleaning of the air continuously without affecting the performance of the main air handler. In most cases all the air in the room would be filtered once every 30 minutes to an hour. In addition, it is possible to add small amounts of outside air into and through the PAS unit prior to entering the main air handler which helps to pressurize the room area and also dilute the inside air. The small amount of air that is added from the outside does not really affect the temperature since the percentage is usually around 3% to 5 % of the total volume of air being cooled and or heated.

The systems offered by Pure Air Systems range in CFM volume from 50 CFM to 2,000 CFM. These systems all use variable speed motors and are digitially controlled. They are made from components all made in the USA and assembled in Indianapolis, IN. 

For more information on all of our systems please go to our website at:  http://www.pureairsystems.com       or call us on our toll-free number 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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