Some 8.8 million people die every year from respiratory illnesses resulting from air pollution.  Israel’s Airovation Technologies turns indoor air pollution into oxygen, while eliminating viruses (e.g., coronavirus) and bacteria.

https://blog.startupnationcentral.org/general/finder-focus/sky-mining-airovation-technologies-converts-co2-into-valuable-minerals/

https://airovation-tech.com/