We got the V714 to mitigate excessive wood smoke smell in our home. The first day we tried it. We got a little bit of an output smell from the unit and contacted the vendor who said we should put the unit in a separate room and run it on high for a day or two and the smell should diminish as the new filters in the unit cycle some air through them. We did that, and within a few hours, I went into that room just to do a couple of things for less than five minutes and when I came back out into the rest of the house, I was astonished by the difference and how much smoke smell was in the house and how much the filter had already cleaned the air in the room I was in. At that point, I did not need to be convinced that this is an outstanding filter. We’ve been using it for a few weeks Now out in the open space of the rest of the house and have definitely noticed the difference of cleaner air.