Tobacco Road

In the 60’s Eric Burton of the rock group The Animals sang a song about a lost soul. The name of the song was Tobacco Road. The animals and song went on to become an iconic part of early rock and roll. Along the same lines the product tobacco had also become one the most influential soft drugs in the US and around the world. Nicotine, one of the main components of cigarettes and other tobacco related products, is also one of the most addictive compounds legally allowed in every country in the world.

In addition to the nicotine that is harmful to the user, the cotinine that is released as a result of burning the nicotine is a sticky material that sticks to everything it touches and releases an odor that lingers for a long period of time. Attempting to remove this airborne gaseous compound is difficult as it requires both carbon for adsorption of the odor as well as filter media ( usually HEPA filters) to capture the very fine airborne particulates that are released by the cigarette.

Because of the nature of the two emissions both the carbon and media filters ( HEPA ) need to be changed frequently making it very expensive and challenging to remove cigarette smoke in a room or enclosed area. This is one of the major reasons whey smoking is now prohibited in almost every public building and most restaurants.

For more 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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Filtration For Your 3D Printer

With over 13 years of experience in using FDM and FFF 3D style printers one learns quickly the various quirks in the operation of these printers. While they have improved dramatically since the 2011-2012 introduction of desk top printers, there are still some challenges when printing with various filament types. To be specific, ABS ( Acrylonitrile Butadiene Styrene ) has been one of the more popular materials with which to print. However, this material off-gasses when printing at 245 Degrees C and above and the odor can be quite significant. In addition, the gases produced along with some of the fine particles released during printing can become a health concern if not properly vented or isolated when printing occurs.

One of the other issues when printing with ABS is the layer separation that can take place if the object being printed cools to rapidly during the printing process. To minimize this issue you need to enclose the printer and keep the cold air drafts from falling on the printer bed. This enclosure can also also double as a mechanism to reduce the entry of the odors and particulate into the room. The use of a fan powered exhaust system attached to a vent in the enclosure along with a carbon media and HEPA filter will allow for continued use of the printer inside any room or enclosed area without compromising the environmental integrity of the room.

Pure Air Systems has been making fan powered HEPA and Carbon medial filters since 1985. These systems are designed to move from 50 CFM up to 2000 CFM with the ability to control the air volume in 1% increments. These metal framed units come in seven different configurations with the addition of a portable unit that is a prefect fit for the enclosures that would be placed over the 3D printers. For more information on the complete line of HEPA and Carbon media filters 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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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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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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Why Chip Manufacturing Is So Difficult

Micro Chips are used in thousands of devices and are one of the main components for the automotive industry. Whether the car is and ICE or EV vehicle, they both use dozens of chips to operate most functions in their car or truck. Most of the industrial chips are now made overseas and a vast majority in Taiwan.

Making chips is expensive and technologically challenging. Most chips are made from layers of silicone substrates and these layers have to be super clean in between each ( zero dust ) or they will short out. In order to keep the assembly rooms clean and dust free, all the air in the rooms is filtered through a series of filtration stages using HEPA filters. HEPA filters can remove 99.9999% of all particles 0.3 microns and smaller and approach 98% removing particles as small as 0.12 microns. Even these small particles can be a problem if they are sandwiched between the layers of silicone. 

Chip plants use Clean Rooms in which to assemble the micro chips and they are classified as: Class 1000, Class 100, Class 10 and Class 1. These numbers indicate the number of particles per cubic foot or micrograms per cubic meter in the room as measured by a particle counter. As a comparison, any room in your home will probably have 50,000 to 100,000 sub-micron particles per cubic foot. These are not visible with the naked eye, but they are there. So taking your room from 100,000 particles per cubic foot down to 100 or 10 particles per cubic foot is no easy task. In fact, the people that work in these rooms are completely gowned and using recycling breathing packs. 

Clean rooms make up the majority of the area encompassed by the Chip manufacturing plant and the cost for the rooms can be in excess of $10 million each. An entire plant could cost upwards of $1 Billion. This is one of the major reasons why there are no new Chip plants being built in the US at this time. This may change in time but for now we are going to see a continuing shortage of chips into the near future.

For more information on HEPA filters and HEPA 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 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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