Higher Humidity = Dust Mites and Mold
Dust mites live in upholstered furniture, carpets, and mattresses. In order to survive, they must stay hydrated. To stay hydrated, dust mites must absorb their moisture needs from the air. If the relative humidity is below 50%, dust mites desicate (dry out). However, their appetites increase as the relative humidity climbs.
Molds are a fungi. They only require high humidity (70 percent or higher) and an organic-based material on which to feed. It is no surprise they are plentiful in humid climates like those found in basements of homes and businesses.
Why is 50 percent relative humidity so critical?
The survival of adult dust mites is limited to 4 to 11 days in relative humidities below 50 percent. Dust mites in the protonymph stage, however, can survive in this dormant larval stage for several months waiting for high humidity conditions to return.
Mold groth can be eliminated in the home through humidity control that maintains reduced relative humidity levels and prevent cooler surfaces from becoming damp.
Santa Fe Dehumidifiers have the capacities to maintain relative humidity below the recommended maximum 50 percent level, even in structures with fresh air ventilation.
The best way to combat the problem of humidity migrating through the roof, walls, and floors is to pressurize the building with dehumidified air. This strategy involves bringing a measured amount of outdoor air into the structure and dehumidifying it before it enters the living areas. An equal amount of drier indoor air will escape from the structure to equalize the pressure.
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