You can store your mask temporarily and reuse it later. So, remove your mask properly and wash your hands after touching a used mask. Keep it in a dry, breathable bag, such as a paper or mesh fabric bag, to keep it clean between uses. When reusing your mask, make sure to keep the same side facing out.
If you are removing your mask to eat or drink outside of your home, you can put it somewhere safe to keep it clean, such as your pocket, purse, or paper bag. Be sure to wash or sanitize your hands when you have removed your mask. After doing so, put the mask back on with the same side facing out. Just be sure to clean or sanitize your hands again after putting your mask back on.