A condenser dryer is a type of clothes dryer that uses a heat exchanger to dry clothes. Instead of venting hot air outside, it collects moisture from the air inside the drum and condenses it into water, which is then stored in a tank or drained away. This makes it suitable for homes without external venting options. These dryers are generally energy-efficient and can be placed in various locations, such as laundry rooms or bathrooms. They often come with features like sensor drying, which automatically stops the cycle when clothes are dry, helping to prevent over-drying and save energy.