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Note:
1. This product is an emergency product
2. Only for one-time use, destroy after use, please do not use if the packaging is damaged
3. The use time of each mask should not exceed 4 hours
4. Please use within the validity period
Production date: see packaging
Storage and transportation conditions: store in a relative humidity not exceeding 80%, non-corrosive gas, well-ventilated room, avoid high temperature (less than or equal to 40 ° C), sea, land and air transportation.