Most people don’t think about air quality until it becomes a problem. It might not be random if you’ve ever felt sluggish in a home office or noticed your allergies acting up indoors. CO2 levels, ...

CNET’s expert staff reviews and rates dozens of new products and services each month, building on more than a quarter century of expertise. The tiny Meter Pro from SwitchBot tracks temps, humidity and ...

As temperatures drop and windows close, air quality tends to worsen. Add in more baking, more fires, more candles and more gas heating and the winter months can prove bad for your lungs, especially if ...