product manager, tells Edge. The lab can test for any sort of bugs, protozoa, bacteria and viruses. As a Level 2 lab, MSR tests with live bugs, setting it apart.

HEPA is a US government standard, first set in 1983. The standard says that to earn the name, a filter must capture at least 99.97 percent of particles larger than 0.3 µm (micrometers, or microns ...

After finding uranium and lead in my water, I spoke to experts to find out everything I needed to know about how to properly test and filter tap water at home.

Researchers from the University of Houston, in collaboration with others, have designed a "catch and kill" air filter that can trap the virus responsible for COVID-19, killing it instantly.

For the samples identified as heterogeneous mixtures, observe the linked videos of the filter test. If a residue is left on the filter paper after filtering the sample, the heterogeneous mixture can ...