Air Out Your Home for 10 Minutes Every Day, Even in Winter

Indoor air accumulates CO2, cooking odors, moisture, and volatile compounds from furniture and cleaning products. Opening windows for just 10 minutes creates a nearly complete air exchange without significantly affecting room temperature. In winter, a short burst of cold air is far healthier than hours of stale warmth. The key is wide open for a short time, not cracked open all day — that wastes energy and barely moves air.