by Airbiotics | February 13, 2018You're sitting on your favorite couch at home and you feel something crawling on your skin. It feels like an itch, but you don't see anything. This "itch" could be a creepy, crawly dust mite, one of millions that are infesting your home. Dust mites are so named because of their size. They are barely visible to the unaided eye, measuring around 0.2 millimeters in length. The fact that they are so tiny belies the havoc they cause people who are sensitive to allergies.