Scots have been warned that using a fan to cool down during the current heatwave could worsen hay fever and allergy symptoms. Dr Hana Patel, an NHS GP and sleep expert at Time4Sleep, explained that fans circulate allergens like pollen and dust around the room, increasing the likelihood of inhalation or skin contact.
Scotland's Hottest Day and Pollen Alerts
Scotland experienced its warmest day of the year on Thursday, June 25, with temperatures reaching 31C in some areas. Despite thunderstorms replacing sunshine, the heat persists. Pollen counts soared, with red alerts issued for Dumfries, Galloway, Lothian & Borders, and Strathclyde, while Central, Tayside & Fife, and Grampian received amber alerts.
How Fans Aggravate Allergies
Dr Patel stated: "Those who experience allergies, especially allergies to dust or hay fever, may find that their symptoms are agitated by sleeping with a fan. This is because the fan will circulate allergens around the room, increasing the likelihood of them being breathed in, or coming into contact with your skin. If you wake up with a sore throat, itching or sneezing, it’s likely that the fan has aggravated your allergies."
She warned that children and individuals with asthma, allergies, or eczema are most at risk. Old fans accumulate dust on blades, which is propelled into the air when turned on. Fans also distribute allergens from outside if windows are open.
Tips for Using a Fan Safely
To minimize allergy impact while using a fan, Dr Patel recommends placing the fan in the hallway with bedroom doors open to allow air circulation between rooms. Wiping fan blades before use reduces dust circulation. Lowering fan speed cuts back on allergen movement. Regular dusting and vacuuming in the bedroom, keeping doors shut to prevent pets and allergens from entering, and using breathable cotton or linen bedsheets are also advised. Alternative cooling methods include cooling mattresses, lighter sleepwear, or opening windows.
