Anyone who has attempted to measure the pressure drop of a filter mounted in a filter grille will admit it’s a challenge. Some installations have a significant amount of return duct between the filter ...

People whose homes are near busy highways may be able to reduce their blood pressure by running an air purifier with a HEPA filter, a study found. Just a month of air filter use cut systolic blood ...

In a randomized trial, using HEPA filters in the home reduced elevated blood pressure for those exposed to air pollution from living near major highways. Air filtration had no impact on such ...

PRESSURE TAPS: Filter driers can be purchased with Schrader valves (pressure taps) on their inlets and outlets (left), or just on the inlet (right). A pressure drop of more than 2 psi measured with ...

For people living near busy highways, using air filters indoors results in short-term improvements to blood pressure, according to a new study I co-authored. Our team tested 77 participants over three ...