Mildew loves dark, warm and damp environments to make a home in, which is why showers and bathtubs are susceptible to this common household problem. Too much exposure can be harmful to your family, and can cause problems to the respiratory system.
To remove mineral and mildew stains from a shower curtain, first soak it in salt water for 15 to 20 minutes. Hang to drain excess water. Rub the stains with lemon juice while the curtain is still damp. Finish cleaning the curtain as usual, be it wiping with a damp sponge, rinsing with clean water, or running through the washing machine.