Figure 1: Instruction for use. The principle of the trapping device was to attract mites outside mattresses, to take them away and to kill them without insecticides. The trapping device was composed of a textile and a spray containing an attracting solution. The modus operandi was to put a textile on the mattress or on the sofa, to spray an attracting solution on the technical textile. When the attracted mites were in the textile, mites were killed when users put the textile in the washing machine with some soap. The trapping device removed 80% of D. pteronyssinus after one use, 94% after two uses and 97% after three uses. The device did not contain any insecticides mites were killed by the washing machine. The allergens were eliminated by using a vacuum cleaner after the first use of the trapping device.
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