Purchased this for my husbands truck. Removed the odors almost instantly. Small unit to conceal, works great eliminating odors, well worth the price and the best part you get two. I use the second one in my laundry room and it room the dampness when I hang up some clothes. I am pleasantly surprised on how they work. If need be I can move them easily to any area where needed. 

Pros: Long lasting, inexpensive, work great.