Carbon For Odor Control

For many years carbon media or expanded carbon, has been used for the reduction and removal of organic and inorganic gaseous pollutants. Expanded carbon or charcoal is produced using heat under high pressure that creates a surface area that has thousands of tiny openings that are capable of adsorbing gaseous molecules much higher in weight than the carbon itself. 

While carbon granules are often used in liquid filtration, the most common use is in air filtration whether in a stand alone filter or fan powered air filtration system. Carbon media filters have a fair amount of resistance and are therefore more often used in conjunction with a fan powered unit. 

Even though the expanded carbon has a high adsorption rate to weight of the carbon media, it will, over time, load up and stop adsorbing the odors or gases. Replacement cycles can be as long as once every 6 months to once every 6 weeks depending upon the severity of the gaseous pollutant.

For more information on carbon media filters and the complete line of air filtration 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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Air Filtration 101

The use of air filters for removing airborne particulates has been around for over 100 years. Today’s filtration technology is eons ahead of just using cheese cloth to filter our particles for fan powered device. The newer, blended filtration medias are much better at capturing small, sub-micron particles with higher capture rates and lower pressure drops over time.

Air filters range in efficiency from general duty, like furnace filters, to high capacity, high efficiency, like HEPA filters. For most home applications the general duty filters are used as they both help keep the cooling coils in the HVAC system clean as well as minimize the dust in your home. 

The higher efficiency filters, like HEPA, are used mostly in commercial applications like hospitals, clinics, surgery suites, chip manufacturing, clean rooms, laboratories and more. There are also HEPA based systems available for the residential market that utilize their own fan/motor system to augment the blower/motor assembly in the HVAC unit. HEPA filters have a much higher resistance to air flow but can capture particles as small as a virus. 

It should be noted, that the use of non-mechanical filtration devices such as ozone generators or electronic air cleaners are not really that effective at removing particles from the air. Ozone generators are really more effective on the reduction of airborne gaseous contaminants and electronic air cleaners need constant cleaning to make them work.

For more information on the complete line of air filtration systems available through Pure Air Systems, please go to our website at:  http://www.pureairsystems.com   or call us on our toll-free number at: 800-868-8025

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Pure Air Systems. Making A Name For Itself

Innovation is a word that is often over used in today’s market place. Some new ideas or concepts are just an alteration to an already existing product that is being labeled “innovation.” 

In I985, Pure Air Systems was formed and it introduced some new concepts in fan powered, HEPA air filtration systems for both the residential and commercial markets. With an All-American made system, Pure Air Systems ventured into the air filtration market with a commercial grade, high performance, true HEPA filtration system that could be used in a wide number of applications, both residential and commercial. Initially, the PAS line of filtration units was limited to one model, and it incorporated the standard GE Induction motors and no bells and whistles.

By the 1990’s PAS had developed 5 additional models varying from the new HPS Portable line to the very large 2000 CFM 2000HS Plus unit. These new units were now using the new variable speed drive, ECM type motors that were rated, 120/240 Volt, 50/60Hz. This provided systems that could be used anywhere in the world. In addition, the new motors could be used with digital variable speed controllers offering customers the ability to adjust air flow and power performance to meet any performance specifications.

Today, Pure Air Systems is one of only 3 companies in the world that produce this type of commercial grade, high performance HEPA based air filtration system. 

For more information on the complete line of HEPA and Carbon based air filtration from PAS 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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Indoor Air Quality

Indoor Air Quality has been an issue for enclosed spaces, homes, office buildings, medical facilities and industrial buildings since the early 70’s. The issues of people suffering from a wide range of health issues, mostly respiratory in nature, became more acute once the building industry started to build tighter buildings that offered little or no outside air intrusion. This process reduced the energy costs, but increased the amount of stale air and concentrations of gaseous pollutants and airborne particulate that are generated from most materials, chemicals, plants, animals and manufacturing processes.

Using only recirculating air through the air handlers and HVAC units and not allowing any outside, fresh air increased the IAQ issues. Adding outside air only added to the amount of particulate already present in the occupied space.

Pure Air Systems, based in Indiana, had developed a variety of commercial grade, fan powered, HEPA filter systems that could be used to both filter the air in the space as well as add small amounts of filtered outside air. By only adding 50 CMF to 100 CFM of outside air through the PAS units, one air handler could introduce up to 6,000 CFM of fresh, filtered outside air every hour and adding that to the recirculated air also being filtered, created a much healthier environment and reduced the amount of headaches, and respiratory issues in most residential and commercial operations.

Adding the small amounts of outside air, even on hot and very cold days, had a minimal affect on the amount of energy required to heat and cool the indoor environment. By adding an actuator to the inlet damper, it is possible to modulate the amount of outside air so that more or less air could be introduced depending upon weather or the conditions in the occupied space.

For more information on the complete line of HEPA and Carbon based air filtration 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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Pure Air Systems. American Made.

Founded in 1985, Pure Air Systems was one of the first companies to introduce true, commercial grade, fan powered HEPA air filtration systems. The first unit, model 600H, was the base model using a standard 120 volt, 60Hz GE motor, Lau blowers, scanned HEPA filters, carbon media packs and ring panel pre-filters and switches and wire harnesses. All American made. 

Today, Pure Air Systems has 5 different models ranging from 50 CFM to 2000 CFM using the same metal housings, HEPA filters, carbon media packs but with the new variable speed 120/240 volt 50/60HZ motors, digital controllers and pressure gauges. Again, all of these components are currently being made in the USA. In addition, PAS is now one of only three companies in the world that manufacture these commercial grade HEPA air filtration systems.

Making products using US made components in today’s world creates some unusual issues. With most companies using components made in China or other overseas countries, competing with US made components is becoming more difficult. However, the Pure Air Systems units historically have a 15 to 20 year life cycle even in heavy duty operations. The cost may be higher but the performance is unmatched when comparing to similar products made in China.

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

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Cigarette Smoke – Easy to See – Hard to Remove

Smoke from cigarettes and cigars is highly visible and has a distinct odor. It is pungent and will stick to any surface and re-release the odor for a long time. It will cling to clothing and stain hard surfaces over time. Of all the airborne contaminants we generate, cigarette smoke is the most difficult to remove from the air.

Smoke from cigarettes and cigars has both a particulate component and an odor component. Both difficult to capture using filtration systems. The odor can only be removed using carbon based media and the cigarette smoke will even plug up a HEPA filter over time.

The use of ozone generators or UV lights also do very little to alleviate this situation indoors and it is now  the reason smoking is prohibited in almost all indoor facilities, restaurants and eating establishments. It is just too difficult to mitigate with almost any filtration technology.

Pure Air Systems has been making high end, HEPA based, fan powered air filtration systems since 1985 and one of only three companies in the world that make systems for both the commercial and residential markets. The systems range in capacity from 50 DFM to 2000 CFM and can include a prefilter, scanned HEPA filter and carbon media. The systems now all use variable speed drive motors and are digitally controlled. The units are also capable of being used in 120/240 50/60hz applications.

For more information 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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If You Expect To Rate As A Gentlemen Don’t Expectorate On The Floor

For the most part, human beings are fairly messy creatures…not being genetically that far apart from the animal kingdom as we know. Everyday we flake off millions of skin cells and spew out thousands of droplets of moisture every time we talk, laugh, cough or yell. This is how germs, bacteria and viruses are spread from person to person. Close contact just increases the chances of the exchange of body fluids.

Hospitals have the challenge of trying to keep their facilities as clean as possible due to the high rate of infections in hospital patients. Visitors coming into see their loved ones are one of the major players in the cause of infection, simply due to the fact that many patients are immunocompromised due to their post-operative state of health. This is why all the operating rooms are pressurized with 100% HEPA filtered air….to minimize or remove the possibility of bacteria or viruses from entering the surgery suite while the patient is under the knife.

Pure Air Systems has been making fan powered, commercial grade, HEPA filtration systems since 1985 and is considered one of the leaders in this specialized industry. These systems range in air volume from 50 CFM up to 2,000 CFM using variable speed motors for finite volume control to suit any application. PAS makes 7 different models that can be used as stand-alone units or in conjunction with a ducted HVAC system. All of the PAS models are fabricated from galvanized steel and are powder coated for a high end finish. 

Each filter unit comes complete with a prefilter, carbon media filter and true, scanned 99.99% HEPA filter. The motors are all variable speed, programmable and offer 120/240 Volt, 50/60Hz operation for locations anywhere in the world.

For more information on our complete line of HEPA and Carbon based air filtration 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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Gaseous Pollutants Reduction and/or Removal

Airborne pollutants come in many forms. Some we can see like smoke from manufacturing or burning leaves, or particulate in the air from a wide range of sources. But there are many pollutants that are invisible to the naked eye but may produce strong odors some of which can be deadly in large concentrations. Odors produced outside tend to dissipate quickly and unless you are next the source you may not even notice it. On the other hand, gaseous pollutants in closed spaces can be extremely dangerous unless either properly vented or contained in a controlled environment.

Many household odors such as odors from pets, food, cooking, smoking or from various crafts, can be somewhat harmful or a strong irritant if inhaled over a long period of time. These gaseous odors are not removed with standard furnace filters, as those are primarily for capturing airborne particulate, rather you will require a material that will adsorb the gaseous particles. Typically this material is comprised of activated carbon ( charcoal ) and placed in the return air stream of the HVAC system or used in a stand-alone, fan-powered unit.

Carbon is one of the most effective media for reducing and/or removing gaseous pollutants from the air. Expanded carbon has a very high surface area and can adsorb over 100 times its own weight in gaseous pollutants. This material is often contained in a mesh type bag or cannister with perforations to allow air to pass through with minimal resistance. Carbon does have some limitations in that once the carbon has adsorbed it available capacity it will then begin to release this same odor back into the air stream. Typically this material will last 2 to 4 months for most applications before it has to be replaced. 

For more information on carbon for odor removal 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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Pet Dander Is Not Removed By Furnace Filters

One of the strongest allergens is pet dander, especially cat dander and their reactions can be from mild irritation to full-blown respiratory distress. Dander is basically skin flakes that are shed by any animal, including humans. 

These skin flakes can be airborne for short periods of time but usually too heavy to be carried by the air currents in any home or building environment for any period of time. If a cat or dog is running through the house and runs by someone who is allergic to dander, there may be enough dander in the air to cause a reaction. If that person comes in contact with the animal then the dander can attach itself to their clothing or is discarded on the furniture from where they may lay. Once the person inhales the skin flakes their specific allergic reaction will begin and may last for a number of hours or all day. 

Because the dander is not always airborne, the air filters in your return air intake will not see much of that airborne particulate. It is often better to use a portable air filter such as a HEPA filter that uses a fan to pull the air through the room. These can be placed in a bedroom or family room, preferably where the animals do not often track. This will keep that area cleaner and a more significantly reduced level of animal dander.

Pure Air Systems offers a small, powerful, adjustable speed HEPA filter unit that is only 21 inches long and 13 inches square. It can move up to 500 CFM and has a variable speed motor for infinite air flow adjustment. It is easy to carry and can be placed on a table or even the floor if necessary. Putting a filtration device in a area that is considered a safe zone for humans offers the best option for keeping animal dander to a minimum.

For more information on the complete line of HEPA and Carbon based air filtration 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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Pure Air Systems – Real Content – Not Social Media

I must say that I am getting tired of all these Twitter, YouTube, Instagram, etc. sites that tell me things like: “If you look outside and see that liquid falling from the sky….that is rain. And let me tell you why it falls the way it does.”  Really,? Have we arrived at point in our lives that we can only verify what we saw because someone else used social media and told us it was real? 

These are some of the reasons why companies and individuals who actually have valuable and reliable content on their websites and blogs dislike social media. They now have to shift to the “Bizzaro World” approach to get anyone to pay attention. If you are looking for real content then take a look at the Pure Air Systems website. A company that is now 36 years old and one of only three companies left in the world that make this type of fan powered, commercial grade, HEPA filtration system.

In early days of PAS, a lot of content was written for the site that provided easy to understand technical information about all types of air filtration systems, including those sold by competitors. This part of the site was titled:  Pure Air University. It is still a viable section of the website and often used by those searching for real, technical, information written in a format that is easily understood by the laymen. This data forms the basis by which all types and styles of filters are rated and is still one of the most widely read of all the data on the site.

For more Real Content on Pure Air 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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