Originally Posted by Robby W.
While there are mouse repellent liquids, solids, and even electronic devices on the market, there is no scientific evidence presented by the manufacturers that any mouse repellent spray has widespread value. There are no government requirements that these products must be proven effective before they are brought to market. Therefore, even credible consumer commerce sites advertise mouse repellent sprays. In some cases, these products are sold with the promise to get rid of existing infestations. These sprays might irritate the mouse for a few seconds by using chemicals such as natural oils, but the mice soon find a way around or through the treated areas.
Maybe Robby W is right. After all, we haven't seen any scientific evidence and there certainly aren't any government requirements proving effectiveness..............so we are probably all just very lucky! Also, in my case, it might be that it is my black and decker device that is helping since I started using it about the same time as the Fresh Cab. The device is so loud that my next door neighbor 400 feet away can hear it chirping. I haven't seen even so much as mouse droppings in my house, the garage, the MH, the MH shed, and the adjoining shop.