What does it look like?

There are thousands of species of mould taking many colours and appearances. Mould found indoors sometimes resemble fluffy white growths. Mould also commonly appears as spots of coloured staining.

Mould staining on paper cover of book
© Museum of London

Extensive mould growth on a sheet of hardboard
© Larry Carr

White spotting on the surface of a leather camera case
© Larry Carr