Not Strong Enough to do anything in an HVAC system with the air moving at 500fpm
Do not do what other reviewers are saying. Cycling this system on and off with the blower will make it pretty much useless, as the only usefulness of this unit is surface eradiation. It has no effect on air borne contaminants as it's not powerful enough. This would be like trying to warm your house with a match. Sure a match is hot and if you touch it it'll burn you, but good luck in the winter. horrible marketing. Keep it on all the time, have it shine on the coil or at least blower, if possible, and it will prevent stuff growing on the surface (and only within line of site). Also, if you have flex duct, UVC energy will deteriorate flex duct, so keep it away. I work with UV regularly, I know what I'm talking about. Buying cheap, untested air purifying products like this on Amazon is pointless.
Rating: 1 stars