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The
Problem
The
down-side of these measures is that our homes have become, in effect,
sealed boxes with little or no replenishment of the air, especially
in the bedrooms. This leads not only to reduced oxygen that we need
to breathe, but also contamination build-up such as, carbon monoxide
from gas cookers and heaters, cigarettes, vapour from paint and
biological pollutants like house dust mites.
Water
vapour generated within our homes creates the all too familiar streaming
windows leading to mould and fungus problems. Opening windows does
not help as it is an uncontrollable means of ventilation which leads
to wasted energy and an increase in costs, not to mention the security
risks, noise and traffic pollution in highly populated areas.
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