I have used the Conair Medium Room Air Purifier in my bedroom and in the bathroom area.  I started with the bathroom area.  We have a hallway with sink and linen closet that is outside the bathroom.  Sometimes this area gets a little musty.  I plugged in the Conair and let it do it's thing.  My previous model air purifier made more noise than I think it cleaned, so I wasn't expecting anything crazy.  But!  This took the musty smell out of the area and helped cut down on pet dander.  I've moved it into the bedroom to help cut down on dust and pet dander and remove any dog smells that are lingering.  So far so good!  This product is easy to use, relatively quiet and I find it works well at removing allergens in the room.  The touch controls on the side are easy to turn on and off and the blue lights are a nice look.   I'm really happy with the Conair Medium Room Purifier and might have to add a second to use in other areas of the house.