Commercial Grade Particulate, Carbon and Combo Filters for HVAC Applications
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October 24, 2010 | Category: Product Information
Pure Air Systems has been making HEPA and Carbon based, fan powered air filtration systems since 1985. In the late 1990’s PAS decided to offer a separate product line of air filters that would offer the same type of performance as the fan powered filters but compete with the plain air filters being used in the HVAC systems and commercial air handlers.
Pure Air Systems has been using a polyester, dual layer, commercial grade, ring panel filter as the prefilter or roughing filter in all of its units since the inception of the company. These ring panel filters use two different grades of media, one on the air entering side ( dirty air) and one on the air leaving side. The air entering side is slightly thicker and a little more dense than the media used on the air leaving side. These two medias have a metal ring frame that is placed inside the two media panels. The media panels are then heat sealed around the metal frame.
The dual layer filters are a MERV 8 rated filter and have a high dust holding capacity with a low pressure drop even as the filter loads up. The reason for the low pressure drop is the dual layer media concept. This approach provides for a funneling affect that allows for more capture of the larger dust particles which in turn capture the smaller airborne particles. With the amount of media on the filters the air flow to sq. ft. of media is relatively low. Meaning the filters have a lot of media “surface” areas to capture dust particles and thus it will take longer to fill up the filter space with dust. This means lower pressure drops and longer filter life. In most cases these filters only have to be replace 3 to 4 times a year even for industrial applications.
These ring panel filters come in all the standard sizes and can be made into any custom size filter when requested by the customer. They are easy to install and easy to remove and are simply thrown away at the appropriate life cycle of the filter.
In 2008 Pure Air Systems introduced a new filter that combined the Polyester media and carbon in the ring panel design. The carbon media is placed in between the two medias and this filter offers the best of both worlds. Particulate and odor or gas removal with one filter. Like the standard dual layer filters these “combo” filters come in all the standard sizes and are available in custom sizes as well.
The combo carbon filters can be supplied with three different levels of carbon. The lighter, smaller amounts are best suited for the residential HVAC systems as these have the lowest pressure drop of the group. The medium and high capacity combo carbon filters are better suited to the commercial market or for applications where a significant odor or gas is present.
For more information on these filters and the complete product line of air filtration systems available from Pure Air Systems, please go to our website at: www.pureairsystems.com.
Post Tags: air filters air filtration combination particulate and carbon filters HVAC filters MERV 8 rated filters ring panel filters
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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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