I'm tired of mould in this flat. I'm not sure what to use to wash the walls. We keep the furniture away from the walls as best as we can We have too much stuff though and have a hard time with air circulation. We run a dehumidifier almost constantly. We don't dry washing inside, but we never open our windows. It keeps coming back in the same areas, I'd rather not use harsh chemicals. In some areas it's black mould, but others it's green/yellow. I know there is a special paint you can get, but it's very expensive. Just wondering if anyone has any solutions to a non-chemical we could use to help keep it at bay.