Air recirculation in ventilation systems is essentially the mixing of a certain amount of exhaust air into the supply air. This process provides a reduction in energy consumption when heating fresh ...

ATLANTA — A proposed change to the ventilation rate procedure in the American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE’s) indoor air quality standard is open for ...

ATLANTA – A proposed change to the ventilation rate procedure in ASHRAE’s indoor air quality standard is open for review after changes were made based on public input last year. ANSI/ASHRAE Standard ...

This paper highlights the system requirements and operating conditions of automatic air recirculation valves and reviews compatibility of existing calculator types with these requirements. When ...

Setting a car’s ventilation system to “recirculate” is the best way to reduce exposure to harmful traffic pollution. That’s the advice researchers have for parents as millions of children return to ...

Did you know that your biggest daily exposure to air pollutants comes while driving your car to work? Until manufacturers start making intelligent vehicles that automatically keep the car cabin’s air ...

The active development of the mining industry entails an increase in the total energy consumption for the extraction of minerals. Ventilation of mine workings during their extraction is one of the ...

NEW YORK, Nov. 14, 2025 /PRNewswire/ -- Standard Motor Products, Inc. (SMP) continues to add to its comprehensive Positive Crankcase Ventilation Program. The Standard ® crankcase ventilation line-up ...

On March 17, Federation of European Heating, Ventilation and Air Conditioning Associations REHVA published guidance on the operation and use of building services in areas with a coronavirus disease ...

Did you know that your biggest daily exposure to air pollutants comes while driving to work? A recent study from the University of California gives tips on how to best clean the air inside your car.