Indorex is the No.1 UK Household flea spray and 1st choice of pet owners. Safe for both pets and humans. Indorex is an easy to apply combination of 3 active ingredients: Permethrin, an inseciticide which acts fast to kill adult fleas in your pets environment. Piperonyl Butoxde - reinforces the activity of the Permethrin. And Priproxyfen is a long lasting insect growth regulator which prevents eggs and larvae developing into adults. One can covers 79m2, which is the equivalent of an average size three bedroom semi. with protection against egg and larvae development lasting for 12 months. Indorex is also the only veterinary household flea control spray proven to be stable in UV light (sunlight). Eliminating the house dust mite may alleviate allergic skin disease in your pet and reduce the need for drugs. Use Indorex Household Flea Spray by spraying directly on (and if possible under) carpets and rugs, blankets, tiles, skirting boards, paying particular attention to cracks and crevices.