Dehumidifiers control humidity levels in the home, workplace and other indoor areas such as swimming pools, garages and boats. A dehumidifier is usually used for comfort or health reasons, as well as protecting cars, caravans and other equipment from mould, rust and deterioration due to excess humidity.
Humidity is simply the amount of water vapour that is present in the air. The recommended humidity level for dwellings is 45-55 per cent.
Humidity above 60 per cent causes condensation and encourages the growth of mould, fungus, mildew. It also enables bacteria, viruses and dust mites to breed quickly which causes health problems such as allergies, arthritis and asthma.
If the percentage of water vapour in the air is too low it causes excess drying which can trigger skin irritations such as a dry nose, eczema and chapped skin. It can also damage possessions, such as wooden furniture, by drying it out too much.
High humidity indoors is caused by a number of natural factors, in particular the weather. However modern insulation, double glazing, central heating, dishwashers, washing machines and bathrooms can increase humidity, when humidity caused by washing up and cooking for example is trapped indoors.
Desiccant dehumidifiers are the UK’s most popular dehumidifiers of recent years. Desiccant dehumidifiers are smaller, lighter and quieter than compressor dehumidifiers, which is ideal for domestic use, particularly in small flats, studios, caravans, boats and for older persons.
The main functioning kit in a desiccant dehumidifier is the amazing "Zeolite Wheel" which absorbs the humidity when the dehumidifier runs. Zeolites is a natural mineral used in our desiccant dehumidifier. With heat the Zeolite is a very efficient way to capture the moisture from the air. When the Zeolite is first used, it naturally emits a "zeolite" smell which will reduce over a couple of weeks.
The desiccant dehumidifier expels air that is about 7 ºC ~ 10 ºC warmer than the ambient air. This warming of the room makes it ideal for the UK weather especially in the winter. In general a compressor dehumidifier ‘freezes’ when temperatures fall to 17 C or lower, making it less efficient compared to a desiccant dehumidifier.
In colder climates the desiccant dehumidifiers are more energy efficient than the compressor dehumidifiers.
Most desiccant dehumidifiers offer HIGH or TURBO modes where the extraction capacity is doubled. There has been some misunderstanding that at this level they are expensive to run. This is not strictly true. The HIGH mode is there when you need to set a ‘turbo charge’ to you dehumidifier for rapid drying. Thus doubling the extraction rate in the same amount of time. Normal usage should be on the normal setting. Operating without the need for a cold refrigerant gas, desiccant dehumidifiers are the most eco-friendly dehumidifiers.
A desiccant dehumidifier is the better choice for cooler climates such as UK.