Abstract: A procedure for establishing the presence of live housedust mites in a textile sheet-like article, in which the housedust mites are allowed to migrate onto the surface of the article to be tested or are caused to start such a migration, if appropriate by the action of heat, the housedust mites which have migrated being picked up at this point and subsequently identified.

Abstract: The invention relates to a cleansing composition for treating textile surfaces of interior furnishings, said composition including a liquid, foam-type or pulverulent cleanser and including benzyl benzoate as an acaricidal component as well as a solid which causes a pulverulent residue of a particle size suitable for oral ingestion by house dust mites. Water is a predominant component of a liquid carrier for the liquid or foam-type cleanser or of a liquid content of the pulverulent cleanser. A method for killing house dust mites comprises applying said composition to textile surfaces of interior furnishing, e.g., carpets and mattresses.