PTFE filter details:
1. World class PTFE filter import from Taiwan. Quality Guaranteed
2. Ultra-thin membrane and long-lasting performance
3. The filter is designed for general protection, not medical level.
4. Stop using the filter if it is damaged or hinders breathing

PTFE 濾芯特色:
1. 台灣進口PTFE納米濾芯, 質素保證
2. 透薄輕巧, 使用壽命更長
3. 濾芯主要用作日常生活防護, 非醫療級別
4. 如濾芯損壞, 或佩戴時呼吸不暢順, 請立即停用