The Pandemic Has Suddenly Shined Light On Long-Neglected Indoor Air Concerns
![](https://wcec.ucdavis.edu/wp-content/uploads/NPR_AirQuality_081721.jpg)
For more than 25 years, Tom Smith has run 3Flow, a company whose sole mission is to make sure people don’t get sick from airborne hazards in their workplaces. He suddenly has the attention of a lot of employers who never really gave thought to it before the pandemic.