A fenced - in property is awesome, because it keeps the pup contained while keeping other unwanted critters out! (themoderndogtrainer.net)
The heavy duty lining is designed to keep odors in and insects and other unwanted critters out, so you don't have to worry about your living space smelling like dirt and fertilizer. (geekwrapped.com)
This pest control product switches between multiple ultrasonic frequencies to keep unwanted critters from adapting to the discomfort. (geekwrapped.com)