MHRA warns of medical device risks in heat

9 August 2026
in Recent News

Summer heat can affect medical devices, warns MHRA With temperatures rising across the UK, the Medicines and Healthcare products Regulatory Agency (MHRA) is reminding people that hot weather doesn’t just affect us

it can also affect the safe operation of many medical devices.

Millions of people rely on devices every day, including insulin pumps, continuous glucose monitors (CGMs), portable oxygen concentrators, hearing aids and powered mobility equipment. According to the MHRA, excessive heat, direct sunlight, humidity and even perspiration can reduce performance or affect reliability if devices are not used or stored correctly.

For health and social care providers, this serves as a timely reminder that seasonal risks extend beyond hydration and heat related illness. Organisations should ensure staff are aware of manufacturer guidance for any medical devices used by residents or patients, particularly where equipment is portable or regularly used outdoors.

The MHRA recommends several simple precautions, including: – Keeping devices out of direct sunlight. – Following the manufacturer’s storage and operating instructions. – Checking devices regularly for signs of overheating or reduced performance. – Seeking advice if there are concerns about a device’s operation during periods of extreme heat.

As periods of hotter weather become more frequent, considering environmental conditions as part of routine medical device management can help reduce avoidable risks and support continuity of care.

Full MHRA Guidance is available here

MHRA warns of medical device risks in heat

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