Key Points Lower outdoor humidity and heating systems cause dryer air indoors in winter. Air that's too dry can lead to dry sinuses, skin, and lips—plus warping and creaking in your home.The optimal ...
Winter air isn't just cold: it's dry, too. Dry air inside is well-known to cause itchy skin and dry throats, but it can also increase the amount of germs and viruses in your home. The best humidifiers ...
By 2050, over 5 billion people could face at least a month of extreme heat each year. See the risk level in your city.