How Often Should You Change a Shower Curtain?
The best length of time between new shower curtains depends on two factors: the material and how you care for your shower curtain.
Cloth Curtains
Cloth curtains have an elegance and durability that other materials lack. Unfortunately, they absorb water rather than repelling it. Hanging your curtain closed between uses will allow it to dry and cut down the growth of mold, bacteria and fungus. Try washing your curtain monthly in hot water with bleach to kill any mold and to remove stains. With care, your curtain should last a year or more. Replace your curtain when it looks worn or when washing no longer removes stains.
Plastic Curtains
Plastic, vinyl, and other synthetic materials make excellent water repelling shower curtains. Water beads up on the inner surface, so hang these curtains closed between showers to get them to dry. Otherwise, water collects in the folds and provides a home for mold, bacteria, and fungus. Rub your curtain down with a mild detergent either weekly or monthly. This will remove mildew buildup. With care, you curtain may last a year or more. Replace your curtain when it looks dingy, or just when you want to brighten up your bathroom with a new look.