Assertion: hepa filter | /r/HasProperty | effective
Facets:
value: extremely
type: DEGREE
Source sentences:
text: For a HEPA filter in a vacuum cleaner to be effective, the vacuum cleaner must be designed so that all the air drawn into the machine is expelled through the filter, with none of the air leaking past it.
text: A HEPA filter is extremely efficient, but a significant amount of air pressure is needed to force air through a HEPA filter.
text: A HEPA filter is an effective way of significantly reducing airborne particles from entering a car, though it’s not a 100-percent safeguard against coronavirus.