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Asthma
Causes
House Dust Mite, a distant relative of the spider is
present in large numbers in our homes, infesting carpets, soft furnishings and
especially our beds.In a poorly ventilated bedroom a bed can contain 2
million mites. Each House Dust Mite produces about 20 dung pellets
every day. Every dung pellet contains an allergen - the major trigger of asthmatic
symptoms.
Ideal Conditions for the House Dust Mite
House Dust Mites need a humid atmosphere to survive. Draught proofing,
double glazing and cavity wall insulation have
helped to trap stale, moist air inside our homes, creating high humidity
levels. Without adequate ventilation the atmosphere in the modern home is
perfect for House Dust Mite infestation.
A Major Problem in the Bedroom
The House Dust Mite feeds on the
microscopic scales of skin that we shed. Our beds and pillows are full of human
skin scales so mites are rarely short of food.
Their only source of water is from the
air around them. High humidity levels can mean severe House Dust Mite
infestation.
An Important Risk Factor for Asthma
House Dust Mite droppings are a major trigger of asthmatic symptoms. They are also a major risk factor in the
development of asthma itself. An allergic reaction to allergen in House Dust
Mite droppings can maintain chronic inflammation in the lung and then many
factors including traffic fumes, cold air and exercise can trigger asthmatic
symptoms. Studies have shown that if House Dust Mite droppings are removed,
inflammation can subside.
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