Preair dehumidifier and air dehumidifier are necessary.
If you live in a humid climate, a household dehumidifier may help. Because mold, bacteria, dust mites and other allergens grow rapidly in humid environment. Reducing the humidity in the home (especially in the basement, sink and narrow space) may prevent these allergens from thriving. If your home smells mouldy, feels stuffy, or you notice condensation on the window or toilet, the dehumidifier may be a suitable solution.