Blog Tag: variable speed motors

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. 

Architectural and Engineering firms offer engineering and design services primarily for the commercial, industrial and institutional markets.  They may design, engineer and/or specify the types of equipment, controls and materials required to bring a project to completion.

For projects that require some form of HEPA based air filtration for sanitary processes, drug manufacturing, food processing, clean room applications and medical product and health care facilities, A&E firms often work with and incorporate Pure Air Systems HEPA based air filtration systems.

The HEPA based filtration systems offered by Pure Air Systems ( PAS), offer some of the more unique capabilities and features of any HEPA based air filtration system on the market today. First, PAS makes some of the largest and most powerful stand-alone units incorporating both a three-stage filtration system along with the Genteq (GE) ECM variable speed 120/240 volt 50/60 Hz motors.

The three main units, 600HS, 1200HS and 2000HS systems are capable of moving from 100 to 600; 100 to 1200 and 100 to 2000 cfm respectively. Because they incorporate the ECM variable speed motor they can be applied to a wide variety of applications requiring HEPA filtration where specific volumes of air are required and the electrical requirements demand 240 volt motors.

The PAS units are also relatively small and light compared to their overall capabilities. The 600HS is only 97 lbs and the 1200 and 2000HS units weigh just over 200lbs. These units are configured in two different housing styles. One version is configured like an L with the inlet at the top and the discharge at the bottom side. The L versions are comprised of two separate sections that are symmetrical so the top and bottom section can be rotated for any inlet-discharge design requirement.

The S versions, or straight through versions, have the inlet and discharge openings at the ends. These horizontal units can be mounted vertically as well as horizontally and the 1200HS and 20ooHS units each have weld nuts located on the top four corners for ease of mounting.

From an Engineers point of view, the PAS units provide a unique blend of  performance, power, control and durability not found in any other HEPA filtration system today. The fact that the PAS units come standard with a scanned 99.99% at 0.3 micron HEPA filter, carbon media filter and ring panel prefilter means that these units can be applied to almost any application where true, certified HEPA filtration is required.

PAS has been making commercial grade HEPA filtration systems since 1985 and has more HEPA systems installed in commercial applications in North America, Europe and Asia than any other HEPA filtration company. For more information on the complete line of HEPA and Carbon based systems offered by PAS go to our website: www.pureairsystems.com