Assertion: hepa filter | /r/CapableOf | capture 99.97% of particles
Facets:
Source sentences:
text: While N95 masks used by medical professionals block 95% of particles 0.3 microns in size, HEPA filters capture 99.97% of particles that size, according to U.S. Department of Energy standards.
text: These standards affirm that the HEPA filter must be able to capture 99.97% of particles as small as 0.3 microns.