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A well-engineered dehumidifier can make a significant difference to the indoor environment and your family's health.
A dehumidifier that is specifically designed for the allergy market will reduce the dustmite population and the growth of mould in your home.The humidity level necessary to achieve this is 45-50% as at this humidity level, moulds cannot grow and and dustmites cannot survive.
A device known as a hygrometer, which measures the relative humidity (RH) of the air, can be useful.
For some people the indoor air, particularly in the winter months when central heating is on all day and windows and doors are firmly closed, can become uncomfortably dry.
For those with eczema, dry air means even drier skin and noses can feel dry and ticklish. If asthma is a problem, dry indoor air makes matters worse during an asthma attack.
Adding moisture to the air with a humidifier helps to ease the airways whilst those whose skin feels tight and dry in an overheated room can also find relief by adding moisture with a humidifier.
The trick is to find the right balance so that in relieving symptoms you are not promoting the dustmites and mould that can trigger allergies.
Using a simple evaporative radiator humidifier together with a humidity measure is one inexpensive and effective option.
An alternative is to invest in a dehumidifier with a built-in humidity control that will allow you to monitor the RH of your room and keep it at a comfortable but safe level.