Blog Tag: air filters

Air curtains are designed to be placed above a large door or opening to create an “air barrier” so to speak, that will keep the air from one side of the curtain from entering the other side of the curtain. This is accomplihed using a high volume industrial blower and fan with a fairly powerful motor. Usually 1/2 HP to 1HP. The air is produced by the fan and forced through manifold that is placed along the top edge of the door and extends the entire width of the door. The opening of the flow side of the manifold is very small in comparison to the air entry side of the blower. This design create a venturi affect that jets air downward at a very high velocity. 

Pure Air Systems has a series of fan-powered HEPA based air filtration systems that can be used as the main source of fan power for an air curtain while also maintaining a contaminant free air door. These HEPA air curtains are often used in food processing, medical product manufacturing, laboratories and medical facilities. The main advantage is the speed of entering or exiting a room without having to open or close a door. This is a real advangtage when the door opening is very wide and would require either double doors or a horizontal sliding door. In addition, you could have more than one person moving throught the opening at one time. 

Pure Air Systems has been manufacturing HEPA and Carbon based air filtration systems that are fan-powered and with all metal housings since 1985. These units range in air flow volume from a low of 50 CFM to 2,000 CFM. The PAS units come standard with a true, scanned HEPA filter, Carbon Filter and Prefilter. All components are made in the USA. 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:  800-868-8025.

Asthmatics suffer from airborne allergens more often than people with just normal allergies to pollen, ragweed, animal dander, etc. For many asthmatics a small level of dust or airborne particulate can trigger an asthma attack and the only relief comes in the form of an inhaler or other quick acting medication. 

Allergy sufferers can take a number of over the counter medications to help relieve symptoms especially the runny nose, irritated eyes and general stuffed head feeling that are very typical. Being in an environment where they amount of allergens can be reduced will significantly help reduce or eliminate the typical reactions associated with allergy sufferers. 

Pure Air Systems has been making HEPA based, fan powered air filtration systems since 1985. For over 39 years people around the U.S and overseas have been able to use these high performance air filtration systems from general duty air particulate removal to surgical suite operations and everything in between.  The ability to use these systems with standard forced air ducted heating/cooling systems has enabled thousands of allergy sufferers to have almost complete relief when they are in their homes or offices. The HEPA filters are commercial grade and certified at 99.99% at 0.3 microns and larger. The three stage filtration system also includes a dual layer ring panel filter and carbon media filter for odors and gases.

For asthmatics, the PAS line of HEPA systems has proved to be one of the few HEPA based air filtration systems that can both  reduce the levels of airborne particulate while also pressurizing an entire house, office area or large room. This highly effective system has shown to significantly reduce the need for or use of inhalers for the area being actively filtered. Pure Air Systems also makes portable units that can handle an individual room or small area. These are perfect for a child’s or adult’s bedroom or small house or condo. 

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

In today’s fast paced society we often don’t think about common products or processes. We assume that anything we buy or use will operate as indicated and that we should be able to utilize the product with a minimum of effort and retraining. Our home heating/cooling system fits into that category. We turn on the heating or cooling cycle from our thermostat and expect the temperature in the home to match the temperature setting. We do this without much thought. 

When the heating or cooling doesn’t cool or heat adequately we automatically contact our local HVAC contractor rather than even attempt to diagnose the problem by ourselves. While the problem maybe a major malfunction of a component, often times the reason for the lack of cooling or heat is a plugged air filter. 

The blower/motor assembly on your HVAC system is rated at a certain motor horsepower and air flow, as measured in CFM. These are matched systems for the cooling coil and heating system based upon the size of the home. This includes the static pressure the fan sees to pull and push the air throughout the duct system. If the filter is plugged it will take more energy to pull the air through the filter and since the motor/blower assembly is designed to handle a limited amount of static pressure for the CFM it moves. 

If the static pressure capability for the blower/motor is 1.5 ” at rated CFM capacity and the plugged filter adds another .5 to 1.0″ of static load ( which it can do ) it will significantly reduce the air flow through the system as much as 50%. That means it takes much longer to heat or cool your home and it also puts a strain on your system in total. And, it will significantly reduce the ability to remove humidity from the home. Checking the condition of your air filter on a regular basis should be part of your routine.

Pure Air Systems makes a complete line of fan powered HEPA based air filtration systems. We can help you choose the right filter or filtration system for your home to ensure you always have your HVAC system working at its full capacity and that the air in your home is always well filtered.

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

The use of 3D Printers has grown 1000 % over the past few years. Many schools, businesses, entrepreneurs, hobbyists and individuals now own a 3D Printer. The majority of the printers used in the schools and homes are the smaller FFF or FDM filament style printers that print with various types of plastic or composites. These printers can print over 30 different materials and their tool head nozzles can reach temperatures at or above 300 degrees celsius ( 580 F ). When melting these materials during the printing operation, small amounts of sub-micron particulate are produced which depending upon the materials used for printing may create some health issues when inhaled by the user. Air filtration for 3D printing is now becoming a major concern.

Pure Air Systems, an Indiana based company, has been making HEPA based air filtration systems since 1985. Their fan powered units range in volume from 50 CFM to 2000 CFM and their systems all use commercial grade HEPA’s, variable speed drive motors, industrial fans and all metal housings.In the past year a number of the PAS Portable units ( 250 CFM ) and the 600HS ( 600 CFM ) units have been used to filter the air from one or more filament style printers to remove the less than 20 micron sized particles from the air. HEPA filters used in the PAS units are certified at 99.99% at 0.3 microns. Much of the particulate generated by the printers is in the 1 to 10 micron range which can be inhaled and trapped in the lungs. Over time this could create some significant lung problems and severe side affects. More studies are being done all the time to determine the cause and affect.

In many cases the Pure Air Systems units are attached to special enclosures that are used to cover the printers and confine the particulate to one area. One of the better 3D Printer Enclosures is made by LiteWorld LLC., http://www.liteworldllc.com . The PAS units are very powerful allowing one of them to be used to filter the air for multiple printers. 

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

The term HEPA means High Performance Particulate Absolute or Air. This type of filter is used in many applications where the reduction and/or removal of fine, sub-micron airborne particles is required at a much higher efficiency than standard media filters like the ones used in air handling systems or HVAC systems. In order to qualify as a true, certified HEPA filter it must pass be able to have a rating equivalent to a MERV 17 or higher. This means the filter can capture 99.97% of all particles 0.3 microns or larger. Compare this to a MERV 5 or 6 filter which has an efficiency of less than 20% on particles larger than 10 microns in size.

A true HEPA filter is normally a pleated media filter with large pleats with separators or a mini-pleat with glue type separators and is enclosed in a metal housing.and is sealed with an industrial sealant. The metal housing has a gasket on one end of the housing which is normally placed on knife edge seal to eliminate any air bypassing the HEPA filter. The HEPA paper or filter media is fairly fragile and it also enclosed in a housing to protect the HEPA. 

Because HEPA filter paper is very dense, the ability to pull air through the HEPA requires a larger motor/blower assembly as the pressure drop or resistance as measured in inches of water is much higher than the resistance through a standard throw-away furnace filter.Usually HEPA filters are mated with a blower/motor that is designed for this type of media, or they are enclosed is a housing like the ones Pure Air Systems makes that are stand-alone units with their own blower/motor and prefilters.

Pure Air Systems, located in Indianapolis, Indiana is one of a few companies in the U.S. that makes a high performance, certified HEPA, fan powered air filtration system that can be use in the residential, commercial, institutional, industrial and medical markets. These systems are designed to either be attached to any HVAC system in a partial by-pass configuration or as stand-alone units. They range in air flow from 50 CFM to 2,000 CFM.

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

Pure Air Systems has been manufacturing fan powered, HEPA based, commercial grade air filtration systems since 1985. With seven models to choose from PAS offers a system for any application in the residential, commercial, institutional, medical or industrial markets. Their systems can be attached to any type of ducted HVAC system or used in a stand-alone configuration.

Traditionally, the 600HS Plus L version was used on only up-flow HVAC systems located in a garage or basement. In some parts of the country, specifically areas of the South where there are no basements ( i.e. Florida ) a horizontal air handler is utilized. This makes is somewhat challenging to install the 600 HS L version as it can not connect to the return air side of the air handler due to the configuration. The PAS “S” version is a straight thru unit that could be mounted above the or to the side of the horizontal air handler or even in the attic area where space is available. 

Like the L version of the 600HS, the “S” version is split into two symmetrical sections so you can rotate the discharge and inlet access doors to one of four positions thus allowing for installation anywhere so you always have access to the blower/motor and filter sections. The 600HS model produces 600 CFM of HEPA filtered air using a 1/3 HP variable speed drive motor. There is also a 1200HS Plus version, producing 1200 CFM of air and a 2000HS Plus version, producing 2,000 CFM of air. All of these units come in either the L or S versions. And, they can be wired to either connect to the HVAC system or use a digital speed controller to run the units manually from 1% to 100% in 1% increments for specific air flow requirements.

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

If you live on or near the coast line of the U.S. you know the pleasure of looking out over the water and hearing the crashing of the waves and that smell that only comes from being near a body of water. For most people it is very cathartic.

However, with the changing climate conditions and the continued lack of concern over dumping a wide variety of trash into our oceans and lakes, the development of various Algae and toxins is now being found off many coasts.

These toxins are airborne and are harmful to coastal birds, fish and humans. These airborne bacteria range in size from 3 to 10 microns and are not visible with the naked eye. This makes it more difficult to deal with as most people are concerned with what they can see.

In 1985, Pure Air Systems was founded and developed a high end HEPA based air filtration systems that could be attached to any force air ducted heating/cooling system with the ability to clean the entire home 24 to 48 times per day.

PAS uses scanned HEPA filters. These filters are certified to capture 99.99% of all particles 0.3 and larger and up to 99.95% of all particles 0.12 microns in size over time. This means they will remove any and all of the harmful airborne bacteria that comes on shore from the oceans and lakes .

For people with respiratory issues or asthma, these airborne particulate can exacerbate their ability to breath normally without some type of respirator or having to remain indoors when these toxic bacteria are released into the air.

PAS makes a line of fan powered HEPA filtration systems that include a small portable HEPA unit that can move up to 350 CFM of air to our largest system which can move up to 2,000 CFM of air. Except for the portable, the models 600HS, 1200HS and 2000HS can either be attached to an HVAC system or used as stand-alone units. .

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

Offices that are adjacent to a factory floor are often a problem for the staff that works in these environments. The door that provides access to the factory also provides an entry way for the dust and dirt generated by the factory into the office. When an employee enters the office from the floor he or she may have particles of dust and dirt carried on their clothing especially if this is a machining operation or where there is powdered materials being handled.

Also, if the office is air condition with a central heating/cooling system it is often the case that the office space is under a slight negative pressure when the HVAC fan is running. This compounds the issue by pulling in air from the factory area every time the access door is opened.

One way to eliminate this issue is to place a fan powered, HEPA based air filtration system by Pure Air Systems in the room directly or attached to the return air ducting from the main HVAC system.

The Pure Air Systems unit can assist in both keeping the air clean as well as make the room positive rather than negative. If the unit is placed in the room as a stand alone unit is can bring in a small amount of air from outside to help pressure the area or, use the same concept of outside air introduction if attached to the return air duct from the air handler.

In either case the PAS HEPA unit will significantly reduce or remove a very large percentage of the airborne particulate at an efficiency of 99.99% at 03 microns or larger.  The fan powered systems come in a variety of sizes  ranging from 350 CFM to 2000 CFM units. These systems can be adjusted with the digital controller option to run at any speed from 10 % up to 100% in 1% increments.

The systems use the ECM motors which are rated at 120/240 Volt, 50.60 Hz. So they can be used in any country.

For more information please go to our website at: https://www.pureairsystems.com    Or you can call our toll-free number at: 800-869-8025.

The word negative is always associated with something bad or the lack of something good. It is the opposite of the word positive.

In the world of minimizing contact with harmful airborne contaminants the word negative is often used in conjunction with negative air pressure, or making a specific room or area negative.

Hospitals have rooms where they isolate a patient that has a highly communicable disease where the air in the room is constantly being filtered through a HEPA based air filtration system and air handler. The pressure in the room is slightly lower than the air outside the room so when the door to the room is opened all the air moves into the room thus keeping any airborne pathogens from escaping the room.

Negative pressure rooms are common at the CDC in Atlanta and in R&D labs around the world where highly toxic or corrosive chemicals and materials are used for product development. These rooms use both HEPA and Carbon or other adsorptive materials to remove airborne particulate as well as gaseous pollutants.

Pure Air Systems, based in Indianapolis, Indiana manufactures high end, commercial grade HEPA and Carbon based, fan-powered air filtration systems which are used in many of these negative room applications. Their systems can move from 50 CFM up to 2,000 CFM of air through the scanned HEPA filters where in many cases the units themselves are the only air moving device creating the negative pressure.

These systems can also be attached to or be part of the air handling units working in conjunction with cooling and heating systems.

In many instances homes can be under negative pressure when the HVAC system is not properly balanced making the home slightly negative which in this case is bad. That means every time the air handler fan comes on the house tends to draw some air in from the outside which means you are bringing in warm, moist or cold air all the time. Getting your HVAC systems balanced is recommended.

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

In 1995 Pure Air Systems purchased its existing URL. At that time there were few companies with a URL and most people had little knowledge of this digital process and even less of an understanding of what to do with the URL. Back in that era there were few websites and only Windows as a major operating system. IOS was still in its infancy.

By 1996 the internet was beginning to show some power in providing real information to a growing computer savvy public. By 1997 about 10% of all new customers for PAS were linked to our very new website that had a few photos and some text.

By 2000 almost 63% of our business was derived from customers viewing our website. We started to ask for their feedback on the information we provided in the site and made those changes accordingly. Over the years we added more products to the website then in 2007 we made a major change to the entire site.

Now, 2018, we are making another major change to the site. This will incorporate more photos and graphics with more bullet points and easy to understand information on how the filtration systems work and their applications including our Pure Air University section that provided a wealth of information on everything “air filtration.”

The website re-design should be in place sometime in May, 2018. The site is being modified by a very experienced team that has created some of the more impressive sites on the internet.

One of the main issues that will be addressed with the new website is the fact that Pure Air Systems only makes one grade of air filtration device. And that is commercial grade. There is no residential grade systems so everyone who buys one of our systems gets the same units we sell to the commercial world.

For more information on our product line please go to: https://www.pureairsystems.com or call us on our toll-free number at: 800-869-8025.