A good idea... but...
First things first, this is a fine idea to help sanitize the home automatically by exposing the air from your HVAC system to intense infrared light.  My preliminary impression is that it seems to work.  To be honest, it would take a year's worth of tracking common colds and other ailments to be able to state that categorically.  But after a few short weeks, that seems to be the case.<br /><br />Now then, here's the "but".<br /><br />Installation of this device proved to be problematic for a number of reasons.  First off, the template that is provided is too small!  Note the picture of the template that I cut in half and then added a spacer piece of paper to get the correct distance between the light tubes.  Then there was the issue of the tubes being longer than my venting was wide.  Okay, I was able to get around that by using a couple 3/4 inch shelf board as a spacer (note the other picture).  Finally, there was the minor issue of the keyhole slots in the unit.  They "should" suggest that you can place the unit over the screws, then slide it to the side to keep it in place.  You can't!  The screws provided are larger than the largest part of the keyhole.<br /><br />I'm not trying to be negative here, as I have the impression that whomever came up with the concept and design of this product was spot on.  However, that said, the person (or team) that prepared and packaged it for sale clearly dropped the ball.
Rating: 3 stars