What is moisture emission?
Warm air into your room
With every dryer, there is moisture emission. Whether a dryer emits much or little moisture has to do with the seal around the drum door. The stronger the seal, the less hot air your dryer loses. With low moisture emission, you won't be bothered by foggy windows or mold on your walls. As much moisture as possible will end up in the right place: in your condensation tray or through the hose. This is also known as a high condensation efficiency. So remember: high condensation efficiency, low moisture emissions.
Very low moisture emissions
Do you put your dryer in a small laundry room or a room without windows? Choose a model with very low moisture emissions. It'll have a moisture emission of 5% or less. Or a condensation efficiency of 95% or more. With dryers from Miele for example, there is a seal of Kevlar fibers around the drum door. As a result, as little moisture as possible will escape. You won't be bothered by foggy windows or mold on your walls.
Low moisture emissions
A dryer with low moisture emissions loses 5.1 to 10% moisture. This is the percentage of hot air that the dryer will blow into your laundry room. The remaining part ends up in your condensation tray or rinses away via the condensation drain hose. This is a condensation efficiency of 90 to 94.9%. With a dryer that you put in a small laundry room, choose a model with low or very low moisture emissions.
Average moisture emissions
If you put your dryer in a large room with windows that open, you'll have less trouble with warm air. It doesn't matter that your dryer has an average moisture emission. The dryer will lose 10.1% moisture or more. The condensation efficiency is 89.9% or less. By opening the windows during or after drying, you won't have a stuffy room. You could also switch on the bathroom fan.