Brits should be sent home if workplaces get hotter than 25C, a union has demanded as a life-threatening 40C heatwave descends tomorrow.
The GMB said a “maximum working temperature” should be set at 25C in law, forcing bosses to take mitigating measures like air conditioning.
Chiefs also urged flexible working and dress codes, extra breaks and access to water - as Britain has a legal minimum temperature but not a maximum.