https://www.bhg.com.au/lifestyle/cleaning/how-to-wash-mould-clothes/
With the cold and damp weather back, mould is back too. There are natural ways to remove mould from clothing, bedding and other things. One of the most common and effective ways is using borax, using white vinegar or bicarbonate of soda in your washing machine.
Sunlight is a powerful tool in not just drying your laundry but also killing spores and fungus. Make sure that your laundry is completely dry before bringing it indoors. If you have an inverter tumble dryer that will completely dry any damp clothes that will help.
Water must be at least 65 degrees celsius to kill bacteria and that includes your washing up water when washing dishes. If your sink water is only 50 or 55 degrees centigrade then you can’t kill bacteria, either so add boiling water from the kettle or buy antibacterial dishes washing detergent.
For bed linen to keep fresh and avoid mould in a damp environment use borax, you should ventilate your rooms and use moisture removal products like damp rid, regularly to pull the moisture out of the air. These tubs fill with water quickly depending on where you live and if the house is prone to dampness. You can buy the replacement granules for your damp rid pots which works out cheaper than buy new tubs when the crystals are used up. Keep an eye on your windows for black mould too and wipe them down often through winter. Some houses and flats or apartments get mould on the inside walls too so you may need to move furniture to check for mould especially near beds.
I remember as a child and newly arrived in Australia when I lived in a Sydney flat with stone walls inside, and my mother had to keep cleaning the mildew off the walls in our bedrooms. She was fastidious about cleaning the house and always opened the windows every morning but still the mildew would happen.
Mould does affect your health and must be taken seriously as mould can lead to serious illness including cancer.
https://www.blants.com.au/natural-pure-borax/