Dust is tiny particles up to 0.1 mm in diameter that enter homes through windows and ventilation, as well as on the soles of shoes.
Dust is also produced by the inhabitants of the home: it contains flakes of human skin, dandruff and pet hair. It can also contain insect remains, feather fragments, fungal spores and particles of various building materials. Every day, our bodies absorb from 30 to 60 mg of dust.
Scientists have conducted a study of house dust from 35 countries around the world. Depending on the city, arsenic, lead, chromium, nickel, manganese and other elements dangerous to the body were found in it. Dust mites, which feed on dead particles of human epidermis, also pose a threat to health. Their excrements often cause allergies and asthma. Therefore, people with such diseases should approach the battle with dust thoroughly.