Strong agreement. Minimum safety standards for indoor air are as important as minimum safety standards for water and food. For those interested: the Internatio

Strong agreement. Minimum safety standards for indoor air are as important as minimum safety standards for water and food. For those interested: the International Society of Indoor Air Quality and Climate maintains a database of indoor air quality standards worldwide [1]. It lists standards by country, and allows you to filter by pollutant. CO2 is a commonly proxy for ventilation with values <800-1000ppm typically considered to be “good”. For the US specifically: the recently published ASHRAE 241 standard [2] provides updated guidelines for indoor air quality. This provides stronger guarantees than the weaker ASHRAE 62.1 standard [3], as it specifically focuses on reducing aerosol-based transmission of pathogens such as (but not limited to) Covid-19 and H5N1. [1]: https://ieqguidelines.org/table?factor=iaq https://ieqguidelines.org/table?factor=iaq [2]: https://www.ashrae.org/about/news/2023/ashrae-publishes-standard-241-control-of-infectious-aerosols https://www.ashrae.org/about/news/2023/ashrae-publishes-stan... [3]: https://www.ashrae.org/technical-resources/bookstore/standards-62-1-62-2 https://www.ashrae.org/technical-resources/bookstore/standar...