You don’t need fancy mildew cleaners to remove mildew from your shower etc. regular household bleach work fine. Dont use full strength use only a little less than a quarter cup (60ml) for a little more than a pint of water (1 liter). Be sure to rinse your cleaning solution off when done. Use gloves and or work clothes since bleach will do what bleach does…bleach things. And kill germs and remove mildew. Happy cleaning.