Capturing Odors and Particulate From 3D Printers

3D Printers have been on the market now since 2010 and the use of the FDM or FFF style 3D printers that use filaments made from a wide variety of materials are the most commonly used in schools, libraries, small R&D labs, business and homes.

Some of the materials that are used in the printing process such as ABS and Carbon Fiber produce significant odors and in a small room this can be very noticeable and unpleasant. In addition, small, sub-micron particles are released into the air during the printing phase. These particulate are too small to see with the naked eye but can become an irritant to those individuals who have allergies or have some form of respiratory dysfunction.

In order to remedy this issue, should it present itself as a problem, one option is to enclose the 3D Printer to contain the odors and particulate and the second is to connect a filtration system to the enclosure to effectively remove the odors and remove the airborne particulate.

LiteWorld LLC makes a large plexiglass enclosure with aluminum frame and large access doors that will fit over the larger open 3D printers such as the LulzBot TAZ 3D Printers. These enclosures can be purchased directly from LiteWorld by going to their website at: or contacting them by phone at: 941-999-8200.

Pure Air Systems makes the HEPA and Carbon based air filtration systems that can connect to one or multiple enclosures to both remove the odors using the Carbon filters that are included in the systems and remove the particulate by using the commercial grade HEPA filters. These high end systems, coupled with the LiteWorld enclosures will provide an almost clean room environment for your 3D Printer operation.

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

Indy Air Show 09

Indy Air Show 09


Creating Negative Pressure With HEPA Filtration Systems

Pure Air Systems started making HEPA based air filtration systems in 1985. Today they are one of the leaders in HEPA filter technology with over 7 different fan powered systems ranging in capacity from 50 CFM to 2,000 CFM.

In the 60’s and 70’s Asbestos removal was a very big industry as older homes and builders were gutted to remove the harmful asbestos materials. In order to keep the asbestos fibers from flying around and getting out into the open areas or outside the contaminated space, the areas being cleaned up were enclosed in 3 millimeter thick Polyethylene sheeting. Large, fan powered HEPA systems were placed outside the containment area pulling air from inside the containment area creating a negative pressure inside the cleaning zone.

The HEPA filters would trap any of the Asbestos particles and when you entered the containment area through a zipped door air would move into the zone rather than come out of the zoned area.

In the medical field when patients are considered to have a highly communicable disease, they are often placed in rooms that are kept under negative pressure again using fan powered HEPA filter systems. This ensures that any viruses in the room stay in the room.

These same techniques are used by the CDC or WHO when they are working with deadly viruses and bacteria. The rooms where they experiment with these pathogens are tightly sealed and under negative pressure with the air passing through multiple layers of HEPA filters using HEPA, ULPA and SULPA filters. The rooms are designed so that the doors will not open unless the air handlers and HEPA systems are in operation.

HEPA filters are made from very dense media and they have a lot of resistance so larger motor /blower units are required to move air through the HEPA filters. HEPA filters are the only filters capable of removing particles as small as 0.12 microns at levels approaching 99.99995%.

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

Pure Air Systems HEPA Air Filter Systems

HEPA filters have been around since the development of the Atomic bomb in New Mexico in the 1940’s. Originally designed to remove radioactive alpha particles to protect the engineers at Los Alamos, HEPA media or paper is extremely dense and has the ability to trap sub-micron sized particles at levels approaching 99.9995%. In the case of the technicians in New Mexico, these filters were life savers.

In 1985 Pure Air Systems was formed to provide true HEPA based air filtration to the residential market. The initial unit, model 600H, had a 12″ x 12″ 10″ high metal framed HEPA filter the fan was powered by a  1/3 HP induction motor. The unit would produce up to 600 CFM of HEPA filtered air.

The initial marketing for the product was challenging as HEPA was not a common filter media used in the residential market in those early years. The market grew as more people demanded by whole-house filtration and wanted to get away from the standard furnace filters that really did nothing to remove the levels of harmful sub-micron particulate in the air.

Fast forward to 2016. PAS now offers 7 different HEPA based air filtration systems ranging from the new HPS portable units up to the 2000HS unit that can move up to 2,000 CFM. In addition, PAS now uses the newer ECM variable speed motors that allow for use in any country around the world. These are 120/240 v 50/60Hz magnet driven motors that also adjust for the increased pressure drop across the HEPA filters as they load up with particulate. These motors are also more efficient and offer variable speed control to their owners.

Today, Pure Air Systems has filtration systems in every area of the market including, the commercial, institutional, medical, food, beverage, industrial, electronic and residential. All of the units come standard with one prefilter, one HEPA unit and one carbon filter. They can be reconfigured to have only carbon media or or two carbon filters and one HEPA filter.

For more information on the complete line of products please go to our website at:  or call us on our toll-free number at: 800-869-8025.

Pure Air University

When evaluating a product for which you may have little knowledge it is always good to get some objective information from a reliable source. The company from which you want to purchase the product will have a lot of sales data and list the benefits and features but little about the technology used in the design and operation of the product.

The philosophy of many companies is to list features that people will recognize and not confuse them with the technical specifications.This allows for more reading space to sell the product and show the applications.

Selling air filtration systems can be challenging especially when you now have a standard that is used when rating the efficiency of the filters. The MERV ratings are used to provide the consumer with some idea of the overall effectiveness of the filters based on a percentage of removal of certain size particulate. The ratings start at 1 and go 20 with the higher numbers meaning better efficiency at removing smaller airborne particulate.

Most furnace filters are in the MERV 4 to MERV 7  ratings. These are general duty filters and they are good at taking out large particles with minimal air flow resistance. To remove a very high percent of those particles that are sub-micron in size and the most harmful you need a MERV 20 filter.

Pure Air Systems has an in-depth archive in their “Pure Air University” section that goes into depth on the technology behind air filtration, both mechanical and electronic. With this information you can better determine the type and size of air filter or filtration system required for your application or specific health issue.

HEPA Filters are rated MERV 20 and as shown in a MERV chart  and are the best mechanical filter for use in applications where sub-micron particulate needs to be removed. These units are used in medical, institutional, industrial, commercial and laboratory applications.

For more information on the complete line of HEPA filters and to located the materials in their “Pure Air University” section, please go to our website at: You can also call us on our toll-free number: 800-869-8025.

HEPA Filter Systems With Variable Speed Fan Drives

True, commercial grade HEPA filtration systems use a very dense HEPA paper media that requires a fair amount of energy to pull air through it using a radial blade fan. This is one reason that you have very small portable style units for the residential market as they use much smaller HEPA filters and fractional horsepower motors to keep the costs down.

These home HEPA units can usually provide up to 150 CFM of HEPA filtered air as a maximum rate and as the HEPA filter loads up it will slowly back down to the increase in static pressure.

Pure Air Systems offers a line of commercial grade HEPA filtration systems that use the variable speed ECM style motors that us magnets to turn the motor rather than copper windings. This allows for incremental speed adjustments to the motor so that the appropriate amount of horsepower is used to meet the preset CFM volume.

These motors can be programmed to speed up as the resistance across the HEPA filter increase due to dust loading thus providing a constant volume of HEPA filtered air over the life of the HEPA filter. This is critical in applications where certain air filtration exchange rates are required to maintain a clean room level class 100 or 1000 for the specific application.

The other advantage with ECM motors is their ease of modification to operate in any voltage anywhere in the world. These motors are rated 120/240 volt 50/60 Hz and with a simple wiring change the motors can be swapped to work with either voltage. This made it possible for Pure Air Systems to sell their units anywhere in the world without making any changes to their equipment’s electrical components.

For a complete list of all the HEPA filtration systems please go to our website at: Or call us on our toll-free number at: 800-869-8025.



The Shallows

I recently rented the movie ” The Shallows” staring Blake Lively playing a stranded surfer on an island in Mexico where she tangles with a very large shark.  The Shark won’t let her get back to shore after she inadvertently got on a small whale that the Shark had killed thinking she was taking his food.

Surprisingly the movie was good although I believe the Shark would not have been so aggressive in real life. It is always fun when movies take an idea and give it enough truth to be able to sell the unbelievable parts.

Companies often do the same thing when marketing their products. They spin the benefits and features as being the most effective and best performing of any product of its type on the market and show you a video proving their claims. Only the video, like the Shark movie, is slightly to the left of the truth. We all want to believe that what someone is telling us is both accurate and the truth. It is getting harder today to distinguish the truth from fiction.

Performance tends to be the best way to judge the merit of a concept, idea, product or even a movie. With the use of social media as the primary method of exchanging information these days, people are very quick to send out a  review of a certain product, restaurant, movie, play or people in politics. The upside is that a quality product that works well as promised will get a significant amount of positive comments by the masses. Conversely, if the product fails to live up to its performance guarantees, then a huge number of people with eviscerate the company or the product through the internet. And all the TV and newspaper ads won’t stop the bleeding.

Pure Air Systems started its company in 1985 on the premise that it would produce the highest quality, best performing products for the air filtration market. The HEPA and Carbon based, commercial grade, fan powered air filtration systems by Pure Air Systems are considered one of the best in the world today. This did not happen by accident.

Meeting the ever-changing needs of the market place is difficult. PAS has managed to do this by continuing to develop products asked for by the commercial market and consumers alike. They sell performance and reliability on a daily basis.

For more information on the complete line of HEPA based filtration systems go to our website at:  or call us on our toll-free number at: 800-869-8025.


More Than A Feeling

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