How to Remove Mildew from Clothes & Fabric - Persil
Bleach: Bleach is a very powerful mould and mildew-killing agent, but be careful – it can fade colours and damage delicate fabrics. If this is still your preferred option, check the label for safety and dosage guidelines before following the steps below. Borax: You can buy borax as a soluble powder or a detergent. Dilute it according to the instructions on the packaging and use it to pre-treat the stain.