Prevent damp and mould problems in the bedroom.
Windows or vents are not the only means that humid air can better escape from, but also ensures that the air quality in your bedroom improves significantly in general. Better air quality is also better for health. You could also solve the damp problems in your house with the help of an electric dehumidifier, but you should count on a significant increase in your energy bill, because these types of devices are heavy power users. More importantly, this electrical method is similar to patchwork rather than providing a concrete solution for damp and mould problems.