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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Portable HEPA Filter With Variable Speed Motor

Founded in 1985, Pure Air Systems has been manufacturing commercial grade, fan powered, HEPA filtration systems with a wide range of performance. Beginning with their 600HS Plus, PAS has been adding variable speed motors to their line up since 1999 and now offers a new variable speed motor for their HPS 250 portable unit. This unit. first introduced in 2000, used a four speed EBM motor/blower unit and offered air flows from 50 CFM to 250 CFM and immediately became a major addition to the product line. 

The new variable speed motor now offers the same advantages it provides in the models, 600HS, 1200HS and 2000HS units. The ability to have finite control over the air flow to exactly match the needed performance of the unit depending upon the application. Since the portable unit is most often used in a smaller environment such as a laboratory, clinic, semi-clean room or medical facility, the control of speed also allows for control of the noise level. In addition, using the new motor allowed PAS to use a fan blade design that has better air flow and performance over the range of the life of the HEPA filter as well as minimizing fan noise. And like the variable speed motors used in the other systems, this one can be programmed to automatically ramp up and maintain the same speed even as the HEPA filter loads up and the static pressure increases.

This new unit will be available soon. For more information on this updated unit and the complete line of HEPA and Carbon based air filtration systems please go to our website at:  http://pureairsystems.com    or call us on our toll-free number at: 800-869-8025. 

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Pure Air Systems Moving to A New Location

Pure Air Systems has moved its operations from Indianapolis, IN to Danville, IN. Juist a few miles from where Pure Air Systems original location in Clayton, Indiana. This move provides PAS with more room and a more efficient assembly and parts storage area. It will also allow for development of new advancements and custom system designs.

While 2020 was a year of great challenges for most businesses, Pure Air Systems had one of its best years as more medical facilities, and institutional operations requested HEPA based air filtration systems for the reduction and removal of the Covid-19 virus. PAS is now only one of 3 companies in the world the make self-contained, fan powered, commercial grade HEPA and Carbon air filtration systems, in the world. 

In 1999 PAS introduced the variable speed motors ( ECM ) into their product line. This new addition allowed them to provide a motor that could operate at 120 or 240 volt and 50 or 60 Hz. This opened the door to exporting their systems over seas as most other countries use 220 volt/ 50 Hz electrical systems. These motors are used in all the PAS systems including the HPS Portable HEPA series. These ECM motors also allow for the use of digital controllers on the HEPA units providing infinite air volume control and programmed modulation for any application.

The PAS HEPA product line includes systems that can provide true HEPA filtered air from as low as 25 CFM to 2,000 CFM and the systems can be used in conjunction with existing HVAC units ore as stand-alone filtration systems. 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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Bacteria vs Viruses. Size Does Matter

In past blogs we discussed the fact that you can only see down to about 20 microns in size with the naked eye.  For comparison, your hair is about 100 microns in diameter. Dust particles that you see floating in the air are around 100 microns and larger. The larger particles are too heavy to stay airborne so they tend to fall on the floor or other surfaces. 

Airborne allergens such as pollen, ragweed and grasses can also be airborne and they can be smaller than 20 microns in size and stay airborne for a period of time. Allergy sufferers know this all too well. Bacteria can be as large as 10 microns and smaller than 0.3 microns. Bacteria can be on any surface and stay airborne for long periods of time. Viruses, on the other hand, are extremely tiny, as small as .005 microns or 1/1000th of an inch. They can stay alive and airborne for hours both indoors and outside. Covid -19 is a virus.

Removal of airborne particles (both organic and inorganic ) is done best using media style air filters ( think furnace style filter ) that can capture these particles and remove them from the air. For larger dust particles the furnace filters or Merv 7-9 rated filters, are adequate in capturing 90% of the larger dust particles. But less than 10% effective in capturing bacteria or viruses.

Removing these tiny particles requires a HEPA filter. These High Efficiency Particulate Air filters are designed for the commercial, medical and institutional markets and now also used in the residential markets. A standard, true, HEPA filter is rated at 99.99% efficiency for particles 0.3 microns or larger and is over 95% effective at removing particles particles less than 0.005 microns in diameter. Some HEPA filters use a more dense media and are called ULPA  ( Ultra Low Particulate Air) or SULPA ( Super Low Particulate Air ) filters. These are designed for applications like the CDC and micro chip manufacturers.

For more information on HEPA filters and their capabilities 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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Pure Air Systems Shares Rarified Air

Created in 1985 by Don Musilli, Pure Air Systems was one of many companies offering air filtration systems for the commercial and residential markets. But the separation from the competition began shortly thereafter. From the beginning, PAS used an all metal housings, Lau Blowers, GE Motors and commercial grade prefiters, carbon media and HEPA filters. The initial units sold for $695.00. Over time, PAS added other units to their line up and in 1998 became one of the first powered fan filter companies to use the new GE ECM variable speed drive motors. 

The addition of the new motors and expansion to a 9,000 sq. ft. building allowed PAS to expand their product line to 7 different size air filtration systems all of them now using the upgraded, digitally controlled variable speed drive motors. The ability for the motors to be 120/240 50/60 Hz created a new market overseas for the larger systems. The new HPS portable unit opened the doors to more medical markets and the Covid – 19 global pandemic created a whole new market for commercial grade HEPA air filtration systems.

Today, there are only two other companies in the world that make a fan powered, commercial grade HEPA air filtration unit handling up to 2,000 CFM and as low as 50 CFM. With material costs for metal and other components increasing rapidly, it is much more difficult for companies to offer products such as the ones from Pure Air Systems.

For information on the complete line of HEPA and Carbon 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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Using Air Filtration System As An Air Curtain

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.

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High Performance HEPA Portable By Pure Air Systems

Pure Air Systems has been making commercial grade, fan powered HEPA air filtration systems since 1985. They are one of three companies in the world that provide this type of filtration systems. PAS makes a number of models of HEPA systems that range from 600 CFM to 2000 CFM all using variable speed drive motors. Their portable system, the HPS series was introduced around 1992 and has since gone through a number of refinements. It was the only HEPA unit in the line-up that did not use a variable speed drive motor. In stead, it used a 4 speed motor from EBM. 

Coming this year, PAS will be fitting the popular portable HPS unit wiith it’s own variable speed drive motor. This will allow for a CFM range from 25 CFM up to 250 CFM in 1% increments. In addition, the new motor will be designed to maintain the same speed/cfm rating even as the pressure drop increses across the HEPA filter.And likes the original version, the new HPS unit will have a prefilter,carbon filter and a true 99.99% scanned HEPA fitler as standard equipment.

The portable HEPA unit has a wide range of applications and is very well suited fror the laboratory environment as well as small confined areas requiring HEPA filtraiton in both a positive or negative room application. The all metal housing and rugged construction make this one of the best portable HEPA systems on the global market. 

For more information on this system and the complete line of HEPA systems 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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