Often overlooked compared to outdoor work, indoor jobs can pose a heat stress risk, too. Lack of air conditioning and poor airflow can transform any indoor workspace into a sweatbox, with environments like foundries, refineries, welding shops, and mills being particularly hazardous. In this episode, we'll discuss how heavy-duty PPE, such as welding helmets, coveralls, and hazmat suits, further exacerbate these risks, and explore whether cooling PPE can effectively combat these challenges.