1. heat pump dryers
Energy efficient and there is no ventilation required
Use a heat pump to heat the air and dry clothes–warm wet air is cooled to remove water that has collected in the reservoir or channeled to drain, and cool air is then reheated and recycled.
Heat pump dryers need not transmit the vent to the outside and did not make the hot air or humidity within the room–making them perfect for apartment.
The most energy-efficient dryer, so while the heat pump dryer is more expensive, the upfront costs are recouped electrical bills during the lifetime of the dryer.
Heat pump dryers use less than half the energy per load from the condenser dryer or dryer.