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What are the disadvantages of using whole-house air cleaners?

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Permanent whole-house air cleaners can be added to an HVAC system, but the cost is several hundred to a few thousand dollars for the unit and the installation. Disadvantages include the ozone byproduct of electrostatic air cleaners; the need for frequent cleaning of the plates; the need to keep the fan running continuously (24/7) to clean the air, and the electricity cost and noise associated with the large blower fan running continuously.

From: Asthma and Air Filters WebMD Medical Reference

Reviewed by Nayana Ambardekar on July 07, 2018
Reviewed by Nayana Ambardekar on July 07, 2018

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How can air filters help control asthma?

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