Most homeowners don’t give much thought to the microscopic life forms sharing their space—but they should. Dust mites are one of the most common indoor allergens, quietly thriving in bedding, upholstery, and even carpets. While invisible to the naked eye, their presence can have noticeable effects on your air quality and health, especially for allergy sufferers.
Dust mites most feed on shed human skin cells and prefer warm, humid environments. Bedrooms often serve as their ideal habitat, thanks to soft surfaces and body heat. While it’s nearly impossible to eliminate them entirely, reducing their numbers to more manageable levels is not only doable—it’s simpler than many realize.

1. Cut Their Food Supply
Start with the bedding. Since this is where dust mites concentrate, make a habit of washing sheets, pillowcases, and blankets weekly in hot water—at least 130°F. High temperatures are effective at killing mites and removing their allergenic waste.
2. Use Protective Covers
Mattress and pillow encasements, especially those designed to block allergens, can significantly reduce mite exposure. Choose zippered covers made of tightly woven fabric that prevents mites from burrowing in or escaping.
3. Control Humidity
A dehumidifier or an efficient HVAC system can help keep levels below that threshold. Aim for indoor humidity between 30–50%, which also discourages mold growth—another allergy trigger.
4. Vacuum with Purpose
Vacuuming is helpful, but not all vacuums are created equal. Use one equipped with a HEPA filter to ensure you’re not just stirring up mite debris and allergens into the air. High-traffic areas, rugs, and upholstered furniture should get regular attention.
5. Simplify the Environment
The fewer places dust can settle, the better. Consider swapping out wall-to-wall carpet for hard flooring, especially in bedrooms. Reduce clutter and opt for washable curtains or blinds instead of heavy drapes.
6. Don’t Forget the Details
Soft toys, pet bedding, and even upholstered headboards can harbor mites. Washable items should be cleaned frequently in hot water, and non-washables can be sealed in plastic bags and placed in the freezer for 24 hours to kill mites.
Keeping dust mites under control doesn’t require drastic measures or expensive gadgets. With a few consistent habits and practical upgrades, you can make your home less hospitable to these unwelcome guests—and easier to breathe in.