A new trend known as “house burping” is encouraging people to open their windows for 10 to 15 minutes each day, even in the depths of winter, to improve indoor air quality. The practice has gained traction on TikTok, with users demonstrating how to briefly ventilate homes by opening doors or windows.
While the term is new, the concept is well-established in Germany, where it is called “lüften” – meaning to air out. Proponents say it reduces humidity, conserves energy, and lowers concentrations of indoor pollutants. Experts note that indoor air can be two to five times more polluted than outdoor air, according to the American Lung Association.
Tony Abate, a certified indoor environmentalist, told House Beautiful that bringing in outdoor air helps reduce contaminants that can cause illness. Megan Doser, an air quality expert, explained that opening windows regulates carbon dioxide levels, which can spike due to cleaning products, gas stoves, and air fresheners. “Replacing moist indoor air with drier outdoor air makes a big difference in how we feel,” she said.
However, house burping is not a cure-all. Doser warned that it won’t stop mould or dust, so keeping homes clean remains important. For those unable to open windows, the Mayo Clinic suggests running bathroom fans or using window air conditioner units to draw in outside air.
