Drying laundry indoors releases moisture into your home. A single load can release around two litres of water as it dries. How much this raises indoor humidity depends on the amount of laundry, room size, temperature and ventilation. Measuring the conditions helps you see what happens in your own drying room.
Managing humidity when drying laundry indoors
A temporary rise in humidity is expected when you hang up wet washing. Pay attention to whether it stays elevated for hours or condensation appears on cold windows and walls.
Leave space between garments so air can circulate, and make sure the room’s ventilation is working. A dehumidifier can help remove moisture where needed. Heating alone does not remove the water released by your laundry.
Monitor temperature and humidity with RuuviTag
RuuviTag measures temperature and relative humidity and sends the readings to the free Ruuvi Station app over Bluetooth. Place it in the drying room where air can circulate freely, away from wet fabrics, direct heat and splashes.
Check the humidity before hanging up your laundry, then follow the readings during drying. Use the app’s history graphs to see how high the humidity rises and how long it takes to return towards its usual level. Compare similar loads to find out whether changes to ventilation or drying arrangements help.
Keep an eye on temperature too: relative humidity can fall as the room warms, even without moisture being removed. Monitoring both temperature and humidity helps you understand how drying laundry affects your indoor conditions.