The steam from a Jiffy Steamer X-Series can kill up to 100% of dust mites on contact. Eliminating dust mites eliminates potential triggers of allergies and asthma attacks. Hot steam safely penetrates the surface of bedding, furniture cushions, stuffed animals, carpeting and most other places where dust mites lurk, killing the mites on contact. Steaming is completely safe for families and the environment since there are no chemicals or harmful side effects — just pure, clean steam. Every Jiffy Steamer is handcrafted and American-made, using only the highest quality materials, including stainless steel, brass, copper, incoloy and silicone braided color-coded wiring. Each unit undergoes rigorous, multistep testing and comes with an industry-leading 3-year warranty.