Premise: How to make your bedroom asthma friendly<br>Vacuum your bedroom once a week. Use a vacuum that employs a hepa filter or another small-pore, multi-layered vacuum bag designed to help trap allergens. Vacuums with motorized heads are also recommended, as they are better at capturing the dust that the vacuum agitates.
Hypothesis: You should use a vacuum with a hepa filter or a bag designed to trap allergens if you have asthma.