YOUR ITEMS
Anti-Mould Patches are small non-toxic sachets you drop into the dust bag or the box a leather item lives in. They stop mould taking hold on the surface and they work by diffusion, so the smaller and more closed the space, the better they do.
Leave a bag untreated in a Singapore cupboard and it sits in exactly the conditions mould wants. It doesn't announce itself. By the time there's white bloom on a strap it has been feeding for weeks, and the grain it has eaten into doesn't come all the way back after a clean. Restoration costs many times what prevention does, and on some finishes it never fully returns.