MHRA Warns Heat Can Disrupt Home Medical Devices, Affecting Patient Safety
The United Kingdom's Medicines and Healthcare products Regulatory Agency (MHRA) has issued a warning regarding the impact of hot weather on the performance of home medical devices. The advisory, dated July 29, 2026, highlights that devices such as insulin pumps, continuous glucose monitors, portable oxygen concentrators, hearing aids, powered mobility equipment, and CPAP machines can be adversely affected by heat, humidity, and direct sunlight. The MHRA advises users to adhere to manufacturer instructions regarding operating and storage temperature ranges, check device conditions, and manage batteries effectively. The agency also encourages reporting any device malfunctions or harm through the Yellow Card scheme. This advisory underscores the importance of ensuring that medical devices maintain reliable performance under varying environmental conditions.