A damp smell is usually an indication that moisture is either getting into the room, or can’t get out. It will go from bad to worse if the underlying reason for the dampness is not remedied. The damp can produce mould, the spores of which can cause illness and aggravate conditions like asthma.
Identify the cause
Look outside for any water that is running down the outside wall if there is dampness in your room. There may simply be a blocked gutter that is making water pour down the exterior wall and into your room. A burst or leaking pipe could be another, so if you think this could be the problem check under floorboards and look for other signs of leaks. You might have to call in a professional for a serious leak.
Stop drying your clothes in your room, or make sure a window is open as they dry. Check radiators aren’t leaking. Open a window every now and then on a dry day to keep things fresh in your room, but if the damp smell persists you could invest in a dehumidifier – or rent one if you want to dry things up quickly after fixing the root cause.
Avoid storing lots of porous materials like old clothes, books and newspapers in your room because these things soak up any dampness and become musty and foul-smelling. Regular cleaning and hovering should get rid of most smells.
Use an open container of baking soda or charcoal to absorb damp smells. Clean up mould and dampness with a solution of water with either vinegar or lemon juice. Both will kill the mould and the smell. You can then use a normal cleaner on top.