It’s impossible to eliminate dust mites. However, you can take steps to reduce their numbers in your home:
Wash all bedding once a week in hot water, 130 to 140 degrees Fahrenheit. Then dry them on a high heat cycle. You can eliminate dust mites from non-washable bedding by freezing the bedding overnight.
Remove carpeting and upholstery in your bedroom, as they’re places dust mites can settle.
Keep your home’s humidity levels below 50 percent.