Measuring air flow in an HVAC duct can be a tricky business. Paddle wheel and turbine flow meters introduce not only resistance but maintenance issue due to accumulated dust and debris. Being able to ...

A Tesla driver showed how folks can shut off air flow for front passengers, but some say that it doesn’t work on all of the ...

I want to know what I am breathing and I don't leave home without it. We talk a lot about air quality on TreeHugger, and lately we have been preoccupied with particulate matter, the tiny bits called ...