Using HEPA Fan Powered Systems For Virus Protection

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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Covid-19 A Different Type of Media

THE MEDIA is getting a lot of attention these days and depending upon which side of the aisle you sit your position about this pandemic is dependent upon which media outlet you watch or listen to. The term “media” also refers to the type of filter materials used in air and liquid filtration. In the case of these types of materials, they are not subject to opinions or bias. Filter medias have a specific protocol they must pass in order to have a rating for a certain efficiency of particulate removal of certain sized particles.

Pure AIr Systems, founded in 1985, has been making fan powered HEPA based air filtration systems for the commerical, medical, industrial and institutional markets with a very high degree of success. The HEPA media used in their systems is tested under very stringent test protocol to meet or exceed 99.99% removal of particulate 0.3 microns in lager and approach 95% on particulate smaller than 0.3 microns. 

The efficiency of this type of media doesn’t care where the particles came from or how they were generated or even the color and texture. It is a filtration media that is used globally and recognized as the best available filtration for removal of airborne bacterial and viruses. It is important to listen to the science not the hype. 

For more information on the complete line of HEPA and Carbon filtraion systems please go to our website at:  http://pureairsystems.com .   

 

 

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Coronavirus and HEPA Filtration

Viruses are very tiny microbial particles. They are less than .012 microns in size and are easily transmitted by air or touch. The masks that people are wearing to protect themselves from this virus. Unfortunately this is just not the case.

In order to remove viruses from the air you need some very special HEPA type filters. These are called SULPA filters. This stands for Super Ultra Low Particulate AIr or Absolute filters. These are used by the CDC and other medical clinics around the world. Most of the masks now worn by people for protection are not capable of removing any viruses and most bacteria. They are good for removing large dust particles. HEPA masks are available but very expensive and hard to breathe thru as the HEPA paper is very dense and creates a lot of air resistance. 

Pure Air Systems has been making HEPA based, fan powered air filtration systems since 1985 and has a number of HEPA filter systems that are designed for residential, commercial, institutional and medical applications. Their portable unit is certainly one of the best on the market for reduction/removal of harmful airborne particulate including bacteria and some viruses. Their systems can be attached to existing HVAC units or used as stand-alone systems. 

For more information on the complete line of HEPA based air filtration systems from Pure Air Systems please go to our website at: http://www.pureairsystems.com   or call us on out toll-free phone number at: 800-869-8025.

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