These transluscent creatures live in your mattress.  As with any living thing they eat and produce bye products.  This extremely fine dust is toxic and every time you move about in your bed your mattress acts like a bellows blowing this toxic waste into the air for you to breathe. Oven Genie are a part of the Healthy Sleep Group and have purchased specialist equipment to extract the dust mites and their waste.  This is a dry process apart from a light spraying of natural dissenfectant to keep the mites at bay. Please note it will not remove stains.