Comfortable Living Areas

• Many homeowners use dehumidifiers to keep living rooms and bedrooms more comfortable during hot, humid weather. According to John D. Wagner at This Old House, a 25-pint dehumidifier is adequate for use in most living areas.
  
  

Keeping Basements Dry

• Homeowners and other building owners often use dehumidifiers to decrease moisture problems in basements. A basement may require a unit that removes up to 50 pints of water in a 24-hour period.
  
  

Poorly Ventilated Laundry Rooms and Bathrooms

• Homeowners in older homes or homes with inadequate moisture ventilation systems may use dehumidifiers to help keep moisture-producing rooms like bathrooms and laundry rooms dry.
  
  

Closets

• Closets that lack ventilation may build up moisture during hot, humid weather, which can lead to mildewed clothing. A small dehumidifier can help keep a closet dry and smelling fresh.