Ducharme is a contributor to TIME. Ducharme is a contributor to TIME. Given that the average person in the U.S. spends 90% of their time inside, indoor air quality can have a significant impact on ...

Fig. 1: Don’t forget air handler filters — and make a notation when the filter was changed. How does that saying go — “Out of sight, out of mind!” Don’t let summer go by without changing out your air ...

Your heating and cooling system works hard throughout the winter, so before spring arrives, make sure to perform this routine maintenance task to avoid any major issues.

Every year when I pull my air conditioner out of storage and reinstall it, I'm worried about whether my window unit managed to survive the colder months. This year when I turned it on, I was worried ...

Regularly replace air filters every 30 to 90 days, or more often depending on the filter type and household conditions. Keep vents and the area around the outside unit clean and free of obstructions ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...