Read the following paragraph and determine if the hypothesis is true:

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.

Choices: + Yes. + It's impossible to say. + No.
Hypothesis: There are small-pore, multi-layered vacuum bags.


