No more cats; no more cat urine smell in our house!

The Guardian Repellant is a humane way to keep our neighbors cats away from our porch. The cats began to urinate on our front porch right under the dryer vent. The smell immediately crept into the laundry room, and eventually into the house. The Guardian started to work the moment we plugged it in. No more cats; no more cat urine smell in our house!