How do you get rid of mould in a bathroom?

Anonymous Published: Oct. 28, 2017, 9:50 a.m.Last updated: Feb. 25, 2019, 4:45 p.m.

There are mould stains (or mold for US readers) on the ceiling of my bathroom, spots about 1 cm in diameter each). I would like to know which non-toxic product I can use to remove them. There is no fan in the bathroom and no windw. There is a skylight that is not waterproof and it is very humid in summer. Can a dehumidifier help?

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