For those people who live and work in colder climates, the amount of time you spend indoors is proportionally more than those individuals who live in warmer climates. In addition colder air is much drier than warm moist air and as a result dust particles and other airborne contaminants tend to stay suspended in air for much longer periods of time.
As humans we inhale large quantities of air every time we take a breath. All of that air is filtered through our mucus membranes and lung linings and a large portion of the particulate are ( those particles larger than 20 microns ) air filtered out and most often projected out of the body when exhaling.
The smaller particles, those under 20 microns and especially those sub-micron particles, are trapped in the lung linings and not exhaled. They are absorbed by the body and then flushed out of the body. However, some of those particulate may be harmful to the body and these may be airborne viruses or bacteria or perhaps some other type of airborne contaminant. Collecting these particulate is what Pure Air Systems does with their HEPA based air filtration systems.
Started in 1985, Pure Air Systems created a line of Air Filters that specifically used true, commercial grade, scanned HEPA filters in all their systems. HEPA filters are the most effective mechanical device for removing 99.99% of all particles 0.3 microns or lager and approaching 99.98% at particles as small as 0.12 microns in size.
These HEPA systems are all fan powered and use the newer ECM variable speed drive motors so they can be used on 120/240 volt 50/60Hz electrical systems and used any where in the world.
The systems range in capacity from 50 CFM ( Cubic Foot Per Minute) up to 2,000 CFM. They can be used either attached to an existing ducted HVAC system in the by-pass configuration or as stand-alone units. These Air Filtration systems can be used in residential, commercial, institutional, medical and industrial applications.
For more information on the complete line of HEPA 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.