How To Identify True HEPA Filters

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:  http://www.pureairsystems.com      or call us on our toll-free number at: 800-869-8025.

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Installing Pure Air Systems Filtration Systems On Horizontal HVAC Units

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: http://www.pureairsystems.com    or call us on our toll-free number at: 800-869-8025.

        

 

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Airborne Bacteria Removal and Reduction

For those individuals who live along the South West coast of Florida, this year has been especially challenging with the long last issues caused by Red Tide. This algae bloom is a common occurrence during the summer months and often begins out in the Gulf of Mexico. This year the Algae bloom has been larger and extends from Naples up to Tampa Bay. In addition, the blooms are toxic and kill sea life and produce an airborne bacteria that is harmful and potentially fatal to humans.

In 1985, Pure Air Systems was founded to bring true HEPA based air filtration systems to the residential market. These fan powered, metal housed units, are capable of providing surgery suite environments in all types of buildings and for all types of airborne contaminant applications. These true, commercial grade, scanned HEPA filters can remove up to 99.99% of all particles 0.3 microns and larger.

In the case of the Florida Red Tide issue, there are many days when the number of dead fish on the shore which produce a significant odor and also a release of toxic bacteria into the air which is blown onto shore and into the populated areas when the prevailing winds are out of the West. By applying the HEPA based technology used in the Pure Air Systems air filtration units, businesses and home owners along this stretch of shore line could effectively and safely remove a very high percentage of this airborne particulate and protect the health of those that live and work in this area.

The HEPA based air filtration systems offered by Pure Air Systems consist of small portables with volumes up to 350 CFM to large commercial units with volumes up to 2,000 CFM. PAS also utilizes variable speed drive motors so they can control the air volumes for 1 to 100% in 1% increments to provide the correct amount of air flow for the application. PAS units are used in the residential, commercial, institutional, medical and industrial markets.

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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Getting The Lead Out

In the industrial market there are a number of companies that produce batteries that contain components manufactured from lead. While the technology of producing batteries is changing rapidly there are still many operations that use lead.

Lead is still widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radiation protection and in some solders. It is often used to store corrosive liquids.

To produce the lead or when shaping or casting the lead, the particulates that are emitted are extremely dangerous when ingested into the body either through contact with the skin or inhaled.

Plants that make or use lead have their employees wear special clothing and wear respirators whenever they are in areas of lead production. These precautions are necessary as lead dust is very fine and will find its way to any part of the building or structure.

Pure Air Systems, a manufacturer of commercial grade HEPA filtration systems since 1985, has installed many of their 2000HS Plus units in plants where lead is made or utilized in production. In many cases the fan powered HEPA units are located in employee changing rooms or offices within the manufacturing complex.

These filters remove 99.99% of all particles .3 microns and larger and the use of variable speed drive motors allows for finite control of air volume from 50 CFM to 2000 CFM in one percent increments. This provides the correct movement of air for the application.

For example, when the changing rooms or offices are unoccupied the units can run at 30% of volume. When the employees are in the rooms changing out of their protective garments the fans will run up to 100% of volume so that any dust that is thrown into the air during changing is quickly removed.

For more information on the complete line of HEPA and Carbon filtration systems please go to our website at: www.pureairsystems.com or call us on our toll-free number at: 800.869.8025.

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Positive About Negative Pressure

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: http://www.pureairsystems.com or call us on our toll-free number at: 800-869-8025.

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Pure Air Systems Moving Into 2018

Our company has been around since 1985 and over the past 32 years we have seen some interesting changes in technology and the way we communicate with each other and the world. It is in the communication department that we see major changes.

PAS first had a URL in 1995. There were few ways to promote  yourself in those days and we thought being part of the Internet would be a great way to promote our products and company. Turns our we were correct.

Today, almost 80% of all our new customer leads come through our website. People can view our equipment and learn more about our products and systems and the applications for all of them and how they can be installed. But we need to go further.

Our current site is now over 6 years old and needs some fine tuning . It is not responsive so it is somewhat difficult to view on a mobile device. And since over 60% of our new views are from phones or tablets we need to change that. Also we will make the site more user friendly and eliminate some of the confusion about the differences between commercial systems and residential systems ( clue…there are none ).

We would also like to add a Chat app and be more progressive in using Facebook and Twitter. These social media platforms have become the best way to connect to everyone anywhere at anytime.

Look for a major face-lift on our site coming in February of 2018. We think you will like it a lot. If you would like more information on the complete line of HEPA 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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Particulate Removal With HEPA Filters

The process of removing airborne contaminants that are small enough to potentially cause respiratory dysfunctions is somewhat challenging. For the most part particulate removal with standard air furnace type filters is effective on larger, visible particles many of which are aspirated in and then expelled out of the lung systems.

Sub-micron sized particles, those that are less than 1 micron in size, are easily aspirated into the lungs and much of this particulate will stay logged in the lung linings or mucus membranes. This is why particulate removal with HEPA filters is so necessary especially in where airborne allergens and harmful bacteria and viruses are present.

Originally designed during the development of the Atomic Bomb in Los Alamos, New Mexico, HEPA filters have progressed to include filter medias that are more effective than the 99.97% at 0.3 microns. Today there are SULPA filters that have an efficiency of 99.99995% at 0.12 microns. These are the types of filters used in Class 10 clean rooms where micro-chips are manufactured.

Pure Air Systems began using HEPA filters for particulate removal in 1985 in their first system, the Model 600H. This fan powered HEPA based air filtration system could move up to 600 CFM of HEPA filtered air. Today, PAS makes 6 other HEPA based models including a portable HEPA unit capable of moving from 10 CFM to 250 CFM using the newer ECM motors. The largest system, Model 2000HS Plus moves up to 2,000 CFM of HEPA filtered air.

Over 70 years ago the HEPA filter was born to protect the technicians from beta particles produced during the design of the bomb. Today, particulate removal with HEPA filters is considered the best method for protecting us from harmful airborne contaminants.

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 contact us on  our toll-free number at: 800-869-8025.

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Cigarette Smoke Removal

I have written over 100 articles and blogs on the subject of removing cigarette smoke and odor from any indoor environment and the resolutions we have today are the same as those proposed 30 years ago.

The best and most effective method of removing smoke from the indoor environment is to eliminate any smoking in indoor environments. It’s just that simple. Removing it using air filtration, air dilution, carbon filters and high volume fans is only a band-aid approach at best.

Once the cigarette smoke sticks to any surface it will re-release that odor for days. It requires a strong solvent based cleaner to remove the brown tar material that is present on the walls of a smoking environment.

Pure Air Systems has been around since 1985 producing high capacity, commercial grade, certified HEPA and Carbon based fan powered air filtration systems for the residential, commercial, institutional, medical and industrial market place. Many of these systems were sold for the exclusive purpose of removing cigarette and cigar smoke from indoor environments.

The degree of effectiveness of the systems was directly proportional to how much smoke we could remove at the source over time. And, the cigarette smoke will clog up a prefilter in two to three weeks and the HEPA filter in less than 3 months. The Carbon media in the units which is designed to remove much of the odor, would last perhaps 4 to 6 weeks at best. In essence, it is very expensive and difficult to remove the cigarette smoke and odor with any degree of effectiveness.

It is for this reason that smoking is prohibited from most buildings, hospitals, schools, airports, planes, trains and ships. Aside from the environmental issues smoking is also extremely harmful to your health.

For more information on the complete line of HEPA and Carbon based 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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HEPA For Terrorism

We are constantly reminded that we live in a era where anyone at anytime can create mayhem with simple, exotic or well crafted killing tools. There are no limits as to what device a motivated anarchist can do with any of these style devices. Yet, for all the external damage that can be done with hard technology, the invisible, airborne pathogen still creates the greatest threat.

Tiny viruses and bacteria are invisible to the naked eye but can be a major threat to our bodies if these pathogens are inhaled, absorbed or injected into our systems. The only true method of totally removing these objects is to use a mechanical filter such as HEPA. High Efficiency Particulate Air filters have been around since 1940 but their real push into the market came in the late 70’s and early 80’s with the development of the micro-chip.

As HEPA technology improved the types of HEPA paper and testing methods became more effective especially as organizations like the CDC began to work with some really horrible contagions and had to isolate them in special rooms with multiple levels of HEPA filters including the newer ULPA (Ultra Low Particulate Air ) and the new SULPA (Super Ultra Low Particulate Air) filters.

In 1985, Pure Air Systems came onto the market offering true, commercial grade, fan-powered HEPA air filtration systems. This was the first true entry of commercial grade HEPA units into the residential market place. Over the years a total of 7 HEPA systems were produced by PAS and the incorporation of the new ECM motors allowed them to create models that had variable speed motors and that could be sold anywhere in the world.

These systems are considered some of the best HEPA filtration systems in the world and have been used in applications where the facility is being prepared to protect against biological attacks. There is no better filter for removal of harmful airborne pathogens than HEPA.

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

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Allergies Are Airborne

Most people who suffer from allergies caused by grass, ragweed, tree pollen or animal dander connect with this allergen through ingestion through their nose or mouth. All of these allergens are airborne and whether you are inside a home, building, school or other indoor environment avoiding the outdoors will not protect you from breathing in these tiny, airborne particles.

Often you will see pollen residue on a table outside or even on windows in your car. However, much of the airborne particulate are smaller than 20 microns which makes them invisible to see with the naked eye. These  tiny particles are carried into the home or building on your clothes as you transport them from one location to another. Then when you walk or move you shake off the allergen particles and they become airborne again which brings them into the air for you to inhale…..again.

Home air filters or furnace filters are not capable of removing these small, sub-micron sized particles. Only HEPA filters will actually remove these tiny airborne particles and the best solution for your home is to install a whole-house HEPA system from Pure Air Systems.

PAS has been making whole-house HEPA filtration systems since 1985 and is the leader in producing a wide range of fan powered, commercial grade, HEPA air filtration systems that use variable speed drive blower/motor units which allow for use as part of your HVAC system or as stand-alone units where you can control the fan speed in 1% increments up to  100% of fan speed.

These systems come with a scanned 99.99% commercial grade HEPA systems, a ring panel prefilter and a true Carbon filter. The PAS housings are all metal as is the blower. Typical life span of these systems is 15 to 20 years.

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

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