ScienceSwitzerlandImproving indoor air quality To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScienceSwitzerlandJo Siegler06/29/2024June 29, 2024Good ventilation can help reduce pollutants in indoor air. We look at what is floating around in our indoor environments and what we can do about it. https://p.dw.com/p/4hcWKAdvertisement