A. Clear out your bedroom of all surplus objects.
Less objects collect less dust.
Keep your humidity level at less than 50 percent. Remember, dust mite allergen does not thrive in drier air. Eliminate all the dust with a good quality hepa vaccum cleaner such as the Miele or Eureka . This means using the special onboard tools to get into those hard to reach places such as tops of pictures ,door headers, corners, blinds, lampshades, underneath the bed or furniture. Use the hepa vacuum twice weekly.