Add Yahoo as a preferred source to see more of our stories on Google. In the months preceding the first known cases of COVID-19 in Wuhan, China, multiple air ventilation systems within the Wuhan ...

MENDENHALL, Pennsylvania (WPVI) -- Right now, restaurants in Chester County are operating at 50% indoor capacity, and many are continuing to make changes to keep the environment as safe as possible.

Stagnant, poorly circulated air could foster coronavirus transmission in some indoor spaces. But it can be hard to tell whether a building's heating, ventilation, and air conditioning (HVAC) system is ...

NEW YORK CITY — Poor air circulation in schools could exacerbate the coronavirus threat when some classrooms reopen in New York. Aging air conditioning and heating systems allow classroom air to ...

Gulfstream has signed an agreement with Kronos Air Technologies covering development of a silent air circulation and purification system for business jets. The system, which circulates the cabin air ...