1. Use disposable mask to cover nose and mouth,minimize the amount of space between the face and the mask.
2. Avoid to touch the mask when using.
3. Replace your mask when it gets damp or soiled.
4. Replace your mask every 2to 4hours.
5. Clean your hands when you remove the disposable mask.
6. Do not reuse the disposable mask.
Post time: Jul-10-2020