by Christopher Brinckerhoff | 3 May 2021 12:00 am
Greenheck Fan Corp. offers its high volume, low speed (HVLS) with a needlepoint bipolar ionization (NPBI) accessory for cleaning air. The NPBI is installed on ceilings near the fans and comes with a mounting kit. The NPBI meets UL-867 and UL-2998 standards for ozone-free operation.
www.greenheck.com [1]
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