Ok From what I know of that is the best one out and it does take a few days to reach full strenght in the room dependent on the size of room.
If you can close a door it will work faster. if you have a large open house it will take longer and may not as there is to much air change.
My understanding is that if you are brining in a new dog to get it up and going at least 3 days ahead to have it working well. Wish I had the research on that but it is at home and I am away until late next week.
JL
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"The truth about an animal is far more beautiful than all the myths woven about it." Konrad Loranz |