Dust mites can hardly be seen with the naked eye. Dust mites naturally thrive in indoor environment, feeding on organic detritus such as human dander. They prefer warm and humid conditions such as found in mattresses, but survive in house-dust as well. The allergenic substances are part of the mite faeces.

Symptoms occur throughout the year, intensified in autumn and winter during the heating period. Mostly the mites are finding optimal living conditions in matresses, thus causing an increase of allergic symptoms during the night and early morning.

Useful tips on what to do

• Use mite-proof mattresses coverings and beddings
• Frequently vacuum-cleaning and wiping of floors reduces the level of allergen exposure
• Avoid house plants in bedrooms