ASTHMA FACT SHEET:
DUST MITES

What are dust mites?
Dust mites are tiny bugs too small to see with the naked eye. They mainly eat particles of skin and dander, so they do well in places where there are people. Dust mites live best in warm, humid areas.

Where are dust mites found indoors?
Dust mites are found in all fabrics. This includes mattresses, pillows, bedcovers, carpets, rugs, curtains, upholstered furniture, clothes, stuffed toys and any other fabric covered items. Dust mites are a major part of house dust.

How can dust mites be controlled?

  • Dust mites are reduced when the home or building is clean and dry.
  • Keep humidity levels between 40-60%. Running an air conditioner helps keep humidity levels low  
  • Use a dehumidifier as needed. Many detect the humidity level and turn on and off to adjust. Remember to empty and clean the reservoir daily.
  • Vacuum carpets, area rugs, and fabric-covered furniture weekly. Do not vacuum when people with asthma are in the room. Use HEPA filter vacuums or HEPA filter bags that capture more dust.
  • Use washable stuffed toys. Limit stuffed toys. Wash in hot water and dry weekly.
  • Reduce clutter and unused items in all rooms.
  • Dust hard-surfaces with a damp, soapy cloth weekly.
  • Choose hard-surface flooring when possible.
  • Use wood, leather or vinyl furniture. Wipe weekly with a damp, soapy cloth.
  • Use washable throw pillows. Wash pillows weekly in hot water.
  • Put dust-proof covers on bed mattress, box spring and pillows.
  • Wipe off bedding (e.g. plastic covers) with a damp, soapy cloth once a week.
  • Wash bedding weekly in hot water (130°F) Caution: Temperatures this high may scald skin.