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" People with an allergy to dust mites are particularly at risk during heatwaves, experts have warned. Figures suggest that up to four-fifths of people with allergies are affected by dust mites, which can cause itchy eyes, a runny nose and eczema. The tiny creatures love a warm and humid environment and just half a teaspoon of dust can harbour as many as 1,000 mites and 250,000 droppings, which are the main cause of allergies. People who are affected by this type of allergy should pay particular attention to their bedding, according to Dick Beijen of Devon Duvets. He revealed: &amp;#039;On average, people lose around half a pint of moisture when they sleep. Dust mites survive by absorbing water from their environment.&amp;#039; The expert pointed out that wool is naturally hypoallergenic and resistant to dust mites, which means that using duvets, pillows and mattress toppers made of wool can &amp;#039;dramatically&amp;#039; reduce contact with dust mites while people sleep. Other tips for dealing with seasonal allergies include airing bedding regularly, using a vacuum cleaner with a HEPA feature and buying a humidifier. Find out more about dust mites on the Allergy UK website "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.netdoctor.co.uk/healthy-living/news/a24182/warm-weather-presents-dust-mite-allergy-risk/>