Myzzer Research & Development
Ultra & Subsonic Pest Control Devices
Study Concluded: September 20, 2002
This study was conducted to establish the true effectiveness of ultrasonic and subsonic pest control devices. These devices produce a high-pitched sound that drives all types of pests out of your house. Some emit a noise you can hear, others make no noise but have a blinking light to let you now they are on. And the final type plugs into the wall and supposedly uses the wiring in your home to create a barrier all the way around the house.
We tested six models: 2 ultrasonic, 2 subsonic and 2 that claim they use the wiring in your home. All models were money-back guaranteed and claimed not to harm pets or humans. All models were tested in the field and in a lab environment.
Field test: Six rodent infested homes were given these devices to use for one month. After 30 days, all homes were revisited and standard trapping began. Over the next two weeks, 4-10 rodents were caught in each house. In one example where the device was put in a crawl space beside two baited snap traps, both traps caught rodents.
Lab test: Using six 4ft. x 6ft. cages in different rooms we placed two rodents (male/female) in each one. A sonic/ultrasonic device was placed in the corner of each cage. On the opposite end of the cage a 2 ft. x 4 ft. sound resistant box was installed so rodents would have a way to escape ultrasonic/subsonic noise. Over the course of two months not one rodent constructed their nest inside the sound resistant box. Some even spent time resting on top of the device. There was no effect on breeding or eating habits.
Conclusion: At best these devices did nothing. At worst they were a buzzing annoyance. At Myzzer, we are always seeking new and exciting pest control technology. Unfortunately, these devices just don't work.
Study conducted by Myzzer Rodent Exclusion
The first human disease known to be due to a hantavirus infection, hemorrhagic fever with renal syndrome, was identified in the early 1950's during the Korean War.
Thousands of United Nations troops developed a mysterious disease marked by fever, headache, hemorrhage and acute kidney failure.
Despite much research, the cause remained unknown for 26 years until a new virus, named Hantaan virus, was isolated in Korea from field mice in 1976.