Electronic Air Cleaners
Electronic Air Cleaner
Is an active electromagnetic field within the media magnetizes airborne particles and traps them on a disposable filter pad. Easy to maintain and cost effective.
Passive mechanisms – because there is a media, there is passive collection.
Polarization and electrostatic attraction – polarized fibers collect polarized and charged particles charged center screen collects polarized and charged particles.
Agglomeration – Natural process (Brownian Motion) greatly accelerated by the field inside the air cleaner. Polarized particles attract each other and charged particles to form bigger clusters that are more easily captured.
Polarized-media air cleaners do an excellent job of removing sub-micron (less than 1 micron in size) particles and without the efficiency loss associated with precipitating electronic air cleaners. The carbon center screens that are used in nautic air air cleaners also trap odors and volatile organic compounds (VOCs). By the nature of polarization technology, the air cleaner’s effectiveness is best measured by assessing particle levels in the home or building over time. Part of the reason for this is a process called agglomeration. Trapped particles become polarized, as do any particles that pass through the air cleaner. Through agglomeration, the polarized particles bond with other polarized particles as they collide in the air. As they increase in size, they are collected. This enables the air cleaner to capture even the very smallest sub-micron particles that tend to suspend in the air rather than move in the air stream.
Any air cleaning system’s effectiveness will be, in part, determined by the air change rates, airflow patterns, and contaminant generation rates. Typically in a house we see particle reductions of 70-90%, but because of the low air change rates in a home, it may take a few days. In a casino, on the other hand, even though the contaminant level and generation rates are much higher, the air change rates are over ten times higher than in a house, so significant reductions in both particles and VOCs are almost immediate.
Laser particle counters confirm this phenomenon. Over a time period of several days you will first see a reduction in particles under .3 microns in size. At the same time there is a spike in the number of larger particles as the smaller particles form larger particles, and then the total particle count drops off significantly.
- 3-10 Microns Pollen, Mold, Dust Mites, Hairspray (99%)
- 1-3 Microns Auto Emissions, Lead Dust, Large Bactria(98.6%)
- .3-1 Microns Smoke (Tobacco, Cooking) Small Bactria(97%)
- VOC’S Formaldehyde from carpets, furniture and other cleaning products (40%)
- Max recommended face velocity: 500 fpm