There are several ways to kill dust mites instantly, according to the search results:

• Steam cleaning: Steam cleaners can deliver temperatures as high as 250 degrees, which means they can kill lots of dust mites. Carpets, cushions, bathroom surfaces, and other upholstered furniture can be steam cleaned once per season.

• De-Mite Laundry Additive: This product contains tea tree oil, oil of wintergreen, and benzyl benzoate. It will safely eliminate dust mites from anything you can safely wash in.

• Hot water washing: Wash all sheets, blankets, pillowcases, and bedcovers in hot water that is at least 130 F (54.4 C) to kill dust mites and remove allergens. If bedding cant be washed hot, put the items in the dryer for at least 15 minutes at a temperature above 130 F (54.4 C) to kill the mites. Then wash and dry the bedding to remove allergens.

• Freezing: Another method for killing dust mites is to place the non-washable item in a plastic bag and freeze it for 24 hours. This does not remove allergens, but it will kill the mites.

• Diatomaceous earth: This is one of the methods for killing dust mites naturally. It is a fine powder made from the fossilized remains of tiny, aquatic organisms called diatoms. It works by dehydrating the dust mites and their eggs.

Its important to note that getting rid of dust mites is an ongoing process, and regular cleaning to minimize dust in the home is imperative, especially for those with allergies.