Japan permits shorts and cooling toilets to combat heat‑wave workplace risks

The Japanese government in Tokyo has authorized public‑sector employees to wear shorts during work hours as part of the Cool Biz campaign, aiming to cut air‑conditioning use amid a record‑hot summer. The policy has sparked debate over workplace etiquette and gender expectations, and adoption remains limited, with only a small fraction of male staff opting for shorts.

Companies are also rolling out heat‑mitigation measures. Daito Trust Construction installed modular cooling toilets with ventilation and mist systems at two Tokyo construction sites, while Obayashi Corp reduced site working hours to 7 a.m.–1 p.m. in July and August. Other firms are providing cooling garments, drink tickets and similar steps. In 2025, heat‑related illnesses caused 1,803 deaths and many work absences, with construction and manufacturing sectors most affected.