Israel’s Vootto has developed an air filtration system that is 99.9% efficient at removing pollutants, including Covid-19, from moving vehicles. Vootto replaces the vehicle’s air every 5 minutes; it has a 4-stage filtration system, plus, it contains an anti-odor material made from herbs and plants.
https://www.calcalistech.com/ctech/articles/0,7340,L-3881916,00.html