If Air Isn't Moving, You Aren't Effectively Cleaning It!

Why Air Purifier 1 agrees with this principle:
We believe that air delivery is one of the most important aspects of air cleaning. Most other manufacturers overstate air delivery, some state the air delivery without all of the filters, and generally the consumer loses because the air isn't being filtered as needed. IQAir tests and certifies the air delivery of each individual air cleaner before they leave the factory. You will get a hand-written certification with your IQAir system showing the "cfm" it tested for each fan speed. "CFM" is a way of calculating air flow and it represents "cubic-feet per minute". Many other air cleaners suffer from a rapid reduction in air delivery due to insufficient pre-filtration. IQAir, on the otherhand, uses highly efficient pre-filtration to protect the HEPA filter from premature clogging.

The US Environmental Protection Agency states:
"The effectiveness of air cleaners in removing pollutants from the air depends on both the efficiency of the device itself...and the amount of air handled by the device." "The CADR (clean air delivery rate) is the product of the unit efficiency and the air flow rate, and is a measure of the number of cfm of air it cleans of a specific material".

In Sum:
Fanless/filterless systems such as ionizers which move between 20-30 cfm of air are far less effective than IQAir systems which have air delivery rates in the 260 cfm range. IQAir systems are designed to filter the air in a given room several times per day. IQAir systems also never produce any charged particles or ozone as 'Ionizers' do.