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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Summer Months and Home Indoor Air Quality

For the majority of the U.S., Summer represents hot days, hot nights and in many parts of the U.S., high humidity. This means that for the most part people will remain indoors in their homes, offices and shopping areas in the presence of cool, air conditioning. 

While air conditioning keeps the interior space cool and removes the majority of the humidity, the lack of any outside fresh air means that all the air in the home, office, school or shopping areas is stagnant or stale. Without any type of effective air filtration, the levels of airborne particles (which can include, human skin, bug matter, airborne dust and debris of all types) will increase 10 fold. And, if there are animals present, then the potential for high concentrations of animal dander may occur.

In order to minimize the health hazards of breathing stale, polluted indoor air for long periods of time, we recommend using good air filters on your returns or consider putting one of our 600HS Plus HEPA systems on your ducted forced air HFAC system. With the unique partial-bypass installation concept it is possible to filter all the air in your house up to 24 times per day and introduce a small amount of outside, filtered fresh air without upsetting the AC temperature and humidity in your home.

For more information on this product and the entire line of Pure Air Systems HEPA units, 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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HEPA Systems For New Intel Chip Manufacturing Facilities

Intel is investing $20 Billion dollars to build two state-of-the-art Micro Chip manufacturing plants in Albany, Ohio. Chip manufacturing is done in Class 10 and Class 100 clean room facilities which are constantly being cleaned by HEPA filters with the rooms being under positive air pressure.

Chips are comprised of multiple layers and then assembled together. These layers are highly sensitive to any airborne particulate, even in the sub-micron level, as the dust particle will destroy the chips function and short it out when in use. The types of HEPA filters used in the manufacturing and assembly areas are normally comprised of a series of HEPA’s in banks. They use HEPA, ULPA and SULPA HEPA filters that will remove 99.9999% of all particles 0.12 microns and smaller. As as comparison, the Human hair is about 100 microns in diameter.

Pure Air Systems has been providing commercial grade, fan powered, scanned HEPA filters ( 99.99% at 0.3 microns) since 1985. Many of these systems have been and are being used in smaller micro chip operations, medical facilities, hospitals, military and institutional plants. The PAS systems range from 50 CFM up to 2000 CFM and can include Carbon media along with a Prefilter.

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

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Removing Airborne Gaseous Pollutants

The removal of gaseous pollutants ( odors ) is often accomplished by using a masking agent sprayed into the room or area with the odor. If the odor is temporary or infrequent then the aerosol spray deodorizers will usually meet the task. If, however, the odor is from a continuous source and is strong enough or dangerous to breathe then commercial grade carbon media filters will be required.

The use of expanded carbon ( charcoal) for the reduction/removal of airborne gaseous pollutants has been around for over 100 years. These carbon media packs ( usually 1 inch to 4 inches in depth) can be very effective at removing these strong, continuous odors and the carbon can be combined with other materials to catalyze some pollutants that are not removed by just carbon alone.

Pure Air Systems, has been manufacturing HEPA and Carbon based, fan powered, commercial grade air filtration systems, since 1985. These metal framed units incorporate the newer variable speed motors and the air flows range from a low of 50 CFM up to 2,000 CFM. PAS offers a wide range of sizes and configurations to fit any specific need. Some of the large units can hold up to 80 lbs of carbon media or applications where high concentrations of gaseous pollutants are present. 

For more information on the complete line of HEPA and Carbon 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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Chevrolet Nova – A Car After It’s Time

The Chevy Nova was made in the early 60’s through part of the 70’s and was somewhat popular as a mid sized, low cost vehicle. This car also had many mechanical issues and was dropped from the line up only to be resurrected as the Chevy Citation in the 80’s. Different design, same issues. When the Japanese entered the US car market they were surprised that General Motors ad chosen the name Nova because in Japanese this word means NO GO. This should have been a warning to GM not to use that name.

When Pure Air Systems came out with their HEPA filtration systems in 1985, the units were considered too expensive and the existing furnace type media filters were considered the best filters on the market. Ozone generators and Ion Generators were also sold as high efficiency air filter systems and were much less expensive than the HEPA units. However, like the Nova, these general duty air filtration filters and mechanical systems did not work as promised and are still sold today to unsuspecting consumers. 

The fan powered, commercial grade HEPA filtration systems by PAS are considered some of the best overall HEPA systems on the market. And, Pure Air Systems, Inc. is one of only 3 companies in the world that make this type of HEPA system with a wide range of sizes and housing configurations. The PAS line offers systems that range from 50 CFM to 2000 CFM using new ECM variable speed drive motors.

For more information on the complete line of HEPA and Carbon based 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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Using Metal Instead of Plastic Composites

Many products that used to be fabricated from metal are now made by using an injection molding process and a wide variety of plastics to keep the cost and weight down. In many cases this option works as the strength of many of the composite plastics are very strong and will work for most applications.

In 1985 Pure Air Systems began its process of making fan powered, commercial grade, HEPA air filtration systems for both the residential and commercial markets. The cabinets used to house the filter components was mild steel that was powder coated. These rugged housings allowed for the use in both interior and exterior applications and provided a housing structure that would last 20 years or longer under heavy use.

The housings ranged in size from the small portable which is approximately 13 inches square by 21 inches long, the 600HS series which is 16 inches square by 34 inches long ( high ), The 1200 HS series which is 25 inches square by 48 inches long and the 2000HS series which is identical to the 1200HS in size. All of these units are fabricated from 16 gauge powder coated steel and are built to last.

Early in the 90’s. Pure Air Systems looked at the possibility of using strong, composite plastic materials in-lieu of metal housings but found both the cost and challenge of making a unit strong enough to hold the metal blowers, ECM motors and HEPA filter and associated prefilter material. In this case, metal was and has always been the best choice for making the high performance HEPA based air filtration systems.

For more information on the complete line of HEPA and Carbon filters go to our website at: http://www.pureairsystems.com   or call us on our toll-free number. 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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Creating The Portable Clean Room

Creating a room that meets the criteria considered class 1000 ( maximum of 1000 particles per cubic foot at 0.3 microns) usually requires special construction and an air handler system that includes HEPA filters and a motor/blower system capable of moving 2,000 CFM or higher of filtered air in a positive pressure environment. This design is both expensive and takes a fair amount of time to construct.

Using one of the larger HEPA Shield systems, made by Pure Air Systems, would provide a system that could be easily convert any room into a clean room or temporary surgery suite. The 2000HS unit comes with a 1HP programmable, variable speed drive motor, prefilter, carbon media filter and true, commercial grade 99.99% scanned HEPA Filter. The 2,000 CFM unit can be placed in the ceiling area or along the top of a wall attached to sections of sheet metal ductwork with diffusers located in various parts of the ceiling area. When the unit is operational it will be pushing 2,000 CFM of filtered air into the enclosed space. This will pressurize the room so that when a door is opened into the room the air will move out of the room creating a positive pressure seal of sorts. In this way no airborne contaminants are allowed to enter the room. 

This concept has been used in third world countries where almost any building can be turned into a quasi-clean room or semi-surgery suite for under $3,000.00. In addition, all of the filtration systems from Pure Air Systems are rated at 120/240Volt 50.60Hz.making them suited for any location anywhere in the world.

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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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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HEPA Filtration Systems For Covid-19 Applications

As with most Covid type Viruses, Covid-19 will be with us for a while and like the normal Flu, Covid-19 will also change and have variants over time. For this reason, it will be important to look at putting some HEPA based air filtration systems in your operation to minimize the airborne spread of the virus in small offices or close quarters for your employees and other personnel. This could be one way to somewhat reduce the issues regarding wearing masks, proximity to other people and even operate with un-vaccinated personnel.

Pure Air Systems has been making fan powered, commercial grade, HEPA filtration systems since 1985. They offer a range of sizes for any application or room size. These systems can be used in conjunction with and existing HVAC system or they can be used in a stand-alone configuration. All of the systems use variable speed drive motors and the air volume can be adjusted from 1% to 100% in 1% increments. 

Pure Air Systems can provide you with all the information you will need to select the right system for your application to offer the best performance for the reduction/removal of airborne contaminants. For more information and details on the various units 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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