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House mites, called dermatophagous mites, belong to the class of arachnids and are ubiquitous. The size of these microorganisms is only 0.5 mm and in one gram of house dust up to 2,000 individuals can live. The life cycle of a tick lasts up to 80 days, during which the female can lay up to 70 eggs.
These microorganisms prefer a moist and warm environment and are therefore often found in apartments where the air temperature is between 18 and 25 degrees. Ticks especially like to live in old mattresses, books, stuffed animals, pillows, curtains and carpets.
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