Bests & Worsts Reviews from Amazon

One of my male cats had been peeing in 2 places against an outside door & in 3 places near a door to the garage. I was cleaning urine & its smell off the floor as many as 10 times a week for many months. The Vet suggested I try the diffuser. I plugged the diffuser in within 6 to 10 feet of those areas. After 2 weeks I ordered the spray bottle too, & sprayed a little every few days on the bottom of the doors/ walls. A month later the diffuser ran dry, so I put on a refill. Sometime between 5 & 6 weeks, the peeing suddenly stopped. That was 2 weeks ago & it's still working. I recommend it highly. Just give it a long time to start working.