Showing posts with label Effects. Show all posts
Showing posts with label Effects. Show all posts

Tuesday, November 29, 2011

The Effects of Ultrasonic Bird Repellers on Cats in the House

Ultrasonic pest repellants can affect your cat.Ultrasonic pest repellants emit sounds with a frequency above 20,000 Hz as a way to fend off different animals and pests. Manufacturers of these units claim they are effective and safe for the animal and environment; however, there is varying proof o...



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