Blog Tag: bacteria

Started in 1985, Pure Air Systems has been making commercial grade, fan-powered, true HEPA air filtration systems for over 38 years. The same high quality metal fabricated housings used then are still used today. High quality ECM motors and metal framed HEPA filters along with carbon media and ring panel prefilters are all part of the various systems offered by Pure Air Systems.

PAS makes units a number of systems ranging in air flow from 50 CFM up to 2000 CFM. These units are configured so they can be mounted either as stand-alone units or as part of an existing, ducted HVAC system. The powder coated painted 16 gauge steel housings can be mounted in side or outdoors depending upon the application.

The ECM motors provide for variable speed control using digital controllers or run by a computer system. In addition, they can be used in a a120 volt 60Hz electrical system or 240 volt 50 Hz system. This means they can be use in any location around the world.

HEPA filters are the best method of removing over 99.9995% of all particles 0.3 microns in size and larger and approach 99.99% for particles as small as 0.12 microns. They are used in all hospital and medical facilities and in commercial, military and residential markets.

For more information on the complete line of HEPA and Carbon filtration systems available from PAS, please go to our website at:  http://www.pureairsystems.com    or call us on our toll free number at;  800-869-8025.

Almost 80% of the products purchased on-line from Amazon, Walmart, Ebay and other web based stores, are manufactured in other countries. The majority being made in China. However, many of these products, including Apple iphones, etc, say they are designed in the US but made overseas.

Pure Air Systems has been designing and manufacturing their fan powered, commercial grade, HEPA air filtration systems since 1985. While some of the motors are now made overseas, over 90% of the components that make up the filtration system are made in the USA. These units have shown to be some of the best on the market and many of these systems are still in operation after over 20 years of service.

It is more expensive to purchase components and parts made in the USA and often times a wider selection of component and part types are available from outside the US. Manufacturing is a very challenging process and requires a lot of up front capital to obtain the machinery and skilled labor to make almost anything.

Pure Air Systems continues to look to the US companies to make any new components or parts that are needed for the existing and newly designed units. While these may be more expensive it is important to continue to use parts made in the US to keep these manufacturing operations viable. 

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.

Our eyes allow us to focus on and see airborne particles as small as 20 microns. For comparison, the human hair is about 100 microns in diameter. Most bacteria are in the range of less than 1 to 5 microns in size and viruses are less than 0.12 microns in size. So the old adage that what you don’t see won’t hurt you is not correct.

Bacteria, when present in a warm, moist environment, can stay alive for very long periods of time. From many hours to days. Because it is heavier than viruses it will not stay airborne for very long. So most contact with bacteria comes from contact with a surface or body part that caries the bacteria.

Viruses, on the other hand, are very tiny and light and can stay airborne for long period of time. This is how the flu and cold bugs are normally transmitted. Coming in a room or close contact where these viruses are airborne can infect another human once the viruses are inhaled and ingested. This is the reason masks are used in all medical facilities, especially surgical units.

For information on the complete line of HEPA and Carbon filters manufactured by 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.

For most home owners, having an air filter in the main return air duct next to the HVAC fan system or separate filters in the numerous return air outlets in the rooms of the house, constitute whole house air filtration. 99% of these filters are general duty filters that are capable of removing very large airborne particles and not adding any static pressure load to the HVAC fans. The compromise here is that you are trading air flow for not so good air filtration.

In 1985, Pure Air Systems introduced a new HEPA based, fan powered air filtration system that would provide a much higher level of removing much smaller airborne particulate including bateria and some viruses. By using a concept called, partial by-pass system, PAS can attach their HEPA units to the return air side of the HVAC ducting system and because the PAS systems have their own fan, they will not impede the performance of the main HVAC blower/motor assembly.  In addition, the PAS units also incorporate a prefilter and carbon media filter for removal of odors and gaseous pollutants. 

Since the inception of the partial by-pass concept, PAS has sold thousands of these units to home owners across North America and has even placed some on board ships and in the hospitality industry. This concept is easy to install and can be retrofitted on existing, ducted HVAC systems in any application.

For more information on this and 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.

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.

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.

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.

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

It is often said that people don’t want to hear you complain about issues and things that bother you on a regular basis. With the ability to express your every thought using social media, your issues are now broadcast around the world. Yes, everyone wants to vent about something and everyone hopes someone else will jump on their complaint band wagon.

However, when we do have a legitimate issue, especially one pertaining to our health, we do want someone to take our complaint seriously and not reject it as another “boy who cried wolf” emotion.

For 31 years Pure Air Systems has been selling their HEPA based air filtration systems to a wide range of customers including medical, institutional, industrial and residential. A large number of residential customers suffer from allergies or respiratory dysfunctions brought on by ingesting sub-micron airborne allergens and various types of particulate matter. Because the airborne particles are too small to see with the naked eye, when someone in the house or office complained about their severe reactions to the environment most people disregarded their complaints and paid little attention.

But for allergy sufferers and those individuals who really have issues with airborne molds and other building generated airborne contaminants these issues are real and can cause significant long-term health issues. It is ironic the the particles that tend to be trapped in the lung linings and mucus membranes are too small to see yet cause much more damage than the larger, visible airborne particulate that are aspirated in then out again.

The ability for the commercial grade, scanned HEPA filters, rated at 99.99% efficiency, to remove over 97% of these small, sub-micron particles is the reason people continue to purchase the PAS units over other types of filtration devices or systems. With over 31 years of experience in this arena, Pure Air Systems has become a major supplier of high-end, high performance, fan powered HEPA filtration systems.

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

Watching the news all the time can be somewhat disheartening as we see a lot of issues with people expressing themselves in very negative and destructive ways. We tend to center in on these problems and forget that 99% of the time things are actually fine. It is important not to dwell on the negative but wrap your arms around the positive and know that that history has shown us these times too shall pass.

Perhaps one of the major reasons for so much tension is the fear of change. Technology, in many forms, has created an environment where the “adapt or die” process is taking hold of almost every aspect of our lives.The advent of social media, Uber, AirBnB, Yelp, Facebook, LinkedIn and all the new technologies that are shaping the way we fly, drive, shop, learn, teach, meet people and get medical treatment are forcing large numbers of older adults, world wide, to adjust to a process that they reject. And, they are finding out there is little if anything they can do about these rapid lifestyle changes.

Pure Air Systems started their business in 1985 with an idea to take an existing new commercial technology and introduce it to the residential market place. HEPA filters in 1985 were used primarily in the electronics industry and nuclear power industry. Developed in 1941 as a way to protect the engineers and technicians from radioactive particles during the process of making the first atomic bombs.

HEPA filters are extremely dense in that the HEPA paper used to make these filters can capture particles at .03 microns up to 99.97% of the time. Compared to your standard furnace filter which will capture maybe 10% of those particles if at all. These filters are capable of capturing airborne bacteria and some viruses which is why these filters are now standard in every Hospital Surgery Suite, Clean Room and any place where a clean room type of environment is required.

In 1985 Pure Air Systems began to incorporate these commercial grade HEPA filters into fan powered enclosures that were designed to adapt to existing  HVAC systems and also used  as stand-alone units. Over that past 31 years PAS has added seven new HEPA based fan-powered systems to their product line and with the advent of the new ECM variable speed, digitally controlled motors, Pure Air Systems now sells their systems around the globe.

These products are still manufactured in Indianapolis, IN, USA and that is something that is not going to change any time soon. While it is difficult in today’s global business environment to be competitive with off-shore production, the PAS line of all metal enclosures have a unique niche in the market and creating these systems is fairly expensive and not something that even the Chinese are willing to tackle.

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