3 Layers of Material: The mask is made of 3 layers of high-quality non-woven fabric; It has a stronger filtering effect and is more warm and breathable
Unique Designed: Comfortable elastic earloop; Extra-soft ear loops eliminate pressure to the ears
Experts advice wearing it for up to 4 hours; Should be Disposed off after use for your safety, and avoid secondary pollution; When the face mask is damaged, deformed, wet, or other abnormal conditions, the mask should be replaced immediately