A doctor has issued a warning for anyone using an electric fan at night, stating that it could 'make things worse' for their health. This advice comes as the UK endures severe heat, with the Met Office forecasting highs of 35C across parts of the country.
Heatwave Continues
The government agency stated: 'Tuesday will be another very hot day, with a rapid rise in temperatures through the morning. A peak of 35C is again expected in London, the Home Counties and Cambridgeshire. More widely temperatures exceeding 30C will again be reached across eastern Wales, and eastern, southern and central England away from immediate coastal areas.' The heat is expected to persist through the week, with highs of 31C on Wednesday, 30C on Thursday, 27C on Friday, and 28C on Saturday.
Doctor's Advice
Amid the sweltering conditions, many people are turning to electric fans at night to keep cool. However, Dr Manan Shah, an otolaryngology health expert and founder of Wyndly, has shared potential health drawbacks. In a YouTube video, he explained the pros and cons. He noted that while sleeping with a fan is generally safe, it can be uncomfortable for some, particularly those with sensitive airways or who prefer silence.
Pros of Using a Fan
- Improved sleep quality: Keeping the room cool can enhance sleep.
- Air circulation: Fans help move air around the room.
- White noise: Fans can mask outside noise, acting as a sound machine.
Cons of Using a Fan
- Dry nasal passages: If the fan is too close, it can dry out nasal mucus, leading to stuffiness.
- Noise disruption: Chronic exposure to environmental noise above 40 decibels can affect sleep quality.
- Spread of allergens: Fans can circulate dust and pollen, aggravating allergies and asthma.
Respiratory Issues
Constant airflow from a fan can cause dry skin, itchy eyes, stuffy sinuses, and sore muscles. It can also spread dust and pollen, which is particularly troublesome for allergy and asthma sufferers. According to the Sleep Foundation, fans can distribute allergens like dust and pet dander, leading to symptoms such as a runny nose, itching, and coughing. For some, nasal congestion may worsen asthma, snoring, or sleep apnea.
To minimise risks, the Sleep Foundation recommends cleaning fan blades frequently and using a HEPA purifier to filter allergens. Adding an air filter to the fan can also help reduce airborne particles.



