These devices are working.

These devices [Ultimate ATs] are a Godsend! We actually noticed a difference within the first 24 hours! My one cat had mats of fur that I could not even get a scissors around to cut out. After a weeks or so, I noticed that there was a large space between the skin and the fur mat. Those were "no see-ums." I couldn't believe what I saw and felt.

We still have not had a 100% success with the cats and the carpet, but are working on it. There is no doubt these devices are working. We will never live anywhere again without these devices. They will always be in our home!!!!!!