The Hack
Plug a small device in to your wall which emits ultrasonic sounds imperceptible to humans.
Depending on the marketing, this is claimed to disrupt fleas in various vague ways and eliminates them.
Depending on the marketing, this is claimed to disrupt fleas in various vague ways and eliminates them.
Problems
Scientific research shows that fleas aren't affected at all by ultrasonic waves. These products are not effective at all.