The IQAir HealthPro Air Purifier is a step up from most of the air purifiers we've reviewed. Originally developed for "clean room" use, such as in hospitals, this unit may be more than most people need. But for homes with people who are highly sensitive to allergens or where there is someone who is ill and can't afford to catch an illness from another family member, IQAir's HealthPro may be worth it.

Though 2 or 3 times more expensive than most other consumer units, it has the ability to capture up to 100 times more particles than conventional HEPA cleaners, according the manufacturer.

Coverage is greater than most other units as well. The HealthPro can handle up to 1100 square feet on its maximum fan speed. In addition, the superior quality H12/13 class certified HEPA filter can last up to 4 years, reducing maintenance time (but not cost, they run $195.50). The pre-filter lasts 6 to 18 months, depending upon use (and is also expensive at $65.50). The...

IQAir Whole-House Air Cleaning System Reviewboard’s 2006 Product of the Year

“It’s a great honor to receive this recognition,” says Frank Hammes, President of IQAir. “The Perfect 16 delivers the highest level of air cleaning effectiveness available to homeowners. Reviewboard tested the system in a real home, not in a laboratory, and they saw an almost 95% improvement in air quality.”

“Our readers trust our reviews to help them make informed decisions,” says Philip Ferreira, Editor-in-Chief of Reviewboard Magazine. “The home we tested the Perfect 16 in was immaculate, but like many homes it had a hidden problem – unhealthy indoor air. We used advanced laser particle counting equipment before and after installation so that our readers could see what they could really expect if they had this system installed in their own home.”

The Perfect 16 retrofits into existing heating and/or air conditioning (HVAC) systems. It uses the existing duct work of a home to...