How to Kill Dust Mites on Cloth Furniture

Remove any coverings on the furniture like slip covers. Wash these in water at least 130 degrees F. If the coverings are made of a non-washable material, place them in a sealable bag and put the bag in the freezer overnight. Extremes in temperature typically kills most mites and their eggs.

Vacuum the surface of the cloth furniture with a vacuum that has a HEPA filtration system. HEPA filters capture more dust and allergens than other filtration technologies. Dry vacuuming won't entirely remove dust mites, according to the Revolution Health website. However, it can remove much of the dust in which dust mites thrive.

Clean the furniture with steam. Dust mites are susceptible to the heat steam-cleaning produces. Be aware that, because heat only can penetrate a limited amount into your fabrics and upholstery, this is less effective the thicker your furniture is.

Mix a dust mite and flea control product with water according to the manufacturer's instructions. Spray the mixture on the upholstery.

Sprinkle diatomaceous earth around the cloth furniture you have. This is a fine powder made from the fossils of marine organisms, as explained by the AllergyNursing website. The powder kills the mites by creating sharp surfaces the mites have trouble crossing, so it can make it harder for mites to reach your furniture. Use this with caution, as it can cause allergic reactions in some people.

Adjust the temperature and humidity in your home. Dust mites thrive in warm, humid conditions, so keep the humidity level below 50 percent and your thermostat as low as you can and still be comfortable.

Repeat all steps as necessary.