Sensitivity to indoor allergens poses a word-wide health problem to a large segment of the population, and is relevant from early childhood to adulthood. The source of these allergens includes pets (cats and dogs), pests, (dust mites, cockroaches and mice) mold, spores, polen, smoke and pollution. Children with combined sensitization to these allergens are at increased risk of developing severe allergies. Therefore reducing repeated exposure to indoor allergens is important in order to reduce the frequency and severity of allergic reactions. It is also important to reduce the chance of developing allergies in susceptible individuals We have chosen to focus on a product, developed by pesticide industry for the domestic market, is able to counter the harmful effects of the dust mite faeces in humans.