Ventilation is key
Ventilation is a crucial component in tackling household condensation.
When humidity cannot escape, it forms moisture droplets on cold surfaces like glass windows and mirrors which then remain trapped.
Open windows each morning while going about your sunrise routine and be sure to leave trickle vents open if you’re heading out.
Dehumidify
Another quick fix for internal condensation is to use a dehumidifier in the affected room.
This will prevent excess humidity from turning into moisture droplets which cause condensation.
source: express.co.uk