The podcast episodes discuss the use of humidifiers and their impact on various health and safety-related issues.

In the first episode, Andrew Huberman explains how using humidifiers can help offset the dry indoor air that can dry out nasal passages during the winter months.

The second episode investigates a tragic case in South Korea where a supposedly safe liquid disinfectant for humidifiers contained a toxic chemical that caused the deaths of over 1,000 young people when vaporized and inhaled.