This year we had more than ten years as a cat owner for the first time a flea infestation, not only on the cat, but also throughout the house. I had previously not clear what a nightmare it can be. After I finally understood (defying precautionary treatment of the cat): We have "roommate," I spent hours durchrecherchiert the I-Net, as will those pesky plagues release. I realized, without chemicals has ZERO chance. Now, a few weeks later, I can say: Anyone who believes that he sprayed once a little of this insecticide and then the problem has done, you should rather call the exterminator the same for a lot of money. Eradicating this useless critters from the home is a really hard time with a lot of work! And the long-term Spray Trixie has really served us. We really have any room with the spray (bed, floor mats, car, carpets, stairs, baseboards and floors where our animal has stopped a lot of sprayed. But the success does not come immediately. But that is not the spray, but in the many stages of development where a flea is staying close to its host. It need a lot of patience and perseverance, until you actually cut off all eggs, larvae, pupae and live fleas. And the beasts survivalists and are very resistant, does not make it easier. Who does not shy away for weeks daily to suck (all crevices and ledges, upholstery etc.) generously to treat at least 2 times or 3 times at intervals of a few days his infested rooms (incl. Mattresses, wardrobes and drawers close to the ground) with Trixie , all blankets, pillows and clothes washed at 60 degrees, after some time and a lot of effort all the unloved guests will be going on. The spray leaves on floors or textiles no residue. One should not wet wiping to the long-term effect is not to destroy a few days after treatment. But then you get really more and more "flea corpses". We can confirm the good effect so. Nevertheless, each has to be clear, with stronger infestation is sprayed more than 2-3 cans! We enjoyed it believes in the long term, because price-performance as well as the smell of the agent are really OK.