1.8 layers of high-efficiency filtration, each layer effectively removes harmful substances, and double-layer activated carbon for dual purification
2. High-tech one-way valve, breathable and leak-proof, providing effective protection. When inhaling, keep it tightly closed to prevent harmful gases from entering. When exhaling, open it and let the steam inside the mask escape outward
3.3D three-dimensional cutting, 360° seamless fit, elastic ear bands do not pinch the ears
4. Safe and fluorescent, wear with peace of mind. No fluorescent brightener has been tested
