China Blue Three Layers 3 Ply Meltblown Non-Woven Fabric Personalized Disposable Face Mask

Instruction:
1.Disposable mask, not designed for reuse after wash.
2.Try to keep the mask as flat as possible while storing it after use. Do not fold nose clip frequently to prolong mask's life time.
3.It is not advised to wear it while sleeping, having breathing difficulties or stagnant air.
4.To be worn in general environment to block the pollutants exhaled of released form mouth and nose, and filter certain bacterial and particles.
Tips:
1.Recommended to change the mask every four hours for disposable masks.
2.If it feels loose,please tie a knot on the ear loops
3.The temperatures 5-50ºC relative humidity < 80%
4.Valid ofr 2 years