У ліжку не обов’язково живуть мільярди пилових кліщів | A Bed Does Not Necessarily Hold Billions of Dust Mites

How many dust mites live in one bed? There is no reliable universal average, so the claim of six billion is not supported. Researchers usually count mites in sampled dust rather than tallying every mite in an entire mattress. One study of Brazilian mattresses found averages of hundreds or thousands of mites per gram of dust, with counts differing between the upper and lower mattress surfaces. Abundance depends on humidity, temperature, dust, and housing conditions. The illustration was created with AI.