Filter Spray Developed for NASA Spacecraft Makes Common HVAC Filters Electrostatic

Desiged for Intl Space Station IAQ under a NASA R&D contract, PuraClean now available to service techs at HVAC supply houses. Mainstream Engineering, Rockledge. Fla., a leading R & D firm and manufacturer of aftermarket service/maintenance products, introduces PuraClean the HVAC/R industrys only filter spray that transforms any conventional residential or commercial HVAC/R equipment media filter into a passive electrostatic filter.

Originally developed under a contract for NASA to eliminate airborne particulates and increase indoor air quality (IAQ) in the International Space Station, the patented 16-ounce, non-aerosol filter spray improves filter efficiency ranging from 200-percent to 1,200-percent for 3 to 7-micrometer particle sizes, respectively, but without affecting airflow resistance or system efficiency. Third party test results performed under the ASHRAE 52.1filter testing standard by Research Triangle Institute (RTI), Research Triangle Park, N.C., are available at, the website of QwikProducts , Mainstream Engineerings HVAC/R products marketing division.

PuraClean is designed to improve the performance of any type of filter ranging from reusable metal filters, expensive electrostatic filters or inexpensive spun glass or foam filters. Less expensive filters, which typically filter only 20 percent of airstream particulates, will receive the greatest benefit.

In conventional HVAC systems, friction from the airflow through the filter media can potentially attract particles electro-statically; however those charges are continually dissipating. PuraClean applies a dielectric insulation to the fibers so their electrostatic attraction capabilities remain. Even electrostatic filters benefit from this dielectric coating, since increased dielectric insulation leads to improved filtration.

PuraClean is a win/win product for consumers who can better rid their household of allergens, dander, dust particles and mold spores without purchasing expensive electrostatic filter equipment, and for contractors who can sell it and add $10 to $15 profit to service calls. Each bottle treats up to16 filters.

PuraClean can be purchased or ordered through Johnstone Supply locations and other HVAC/R supply houses.

For more information on Mainstream Engineering, please contact (321) 631-3550 or visit

About Mainstream Engineering: Mainstream Engineering is a solutions-oriented research and development company that markets its new product discoveries to the HVAC/R field. Mainstream is currently designing a Gravity Insensitive Heat Pump for the thermal control system of NASAs future Lunar Outpost and the next-generation crew exploration vehicleThe Orion. Mainstream manufactured the first refrigeration compressor to fly in space on the International Space Station. Mainstream Engineering markets its products under the QwikProducts ( brand and also offers QwikShot acid eliminator; Qwik System Flush refrigeration system flush; QwikCheck one-minute acid check; and other fine products. For more information on Mainstream Engineering and its HVAC/R division products, please contact (321) 631-3550 or visit

Ross Soykadirector of mktg.
Mainstream Engineering
(321) 631-3550

John Parris Frantz
J.P.F. Assoc. Communications
(773) 871-2600

More from Mechanical Components and Assemblies

All Topics