The 3D shape is designed according to the human face shape to ensure the tightness, to increase the breathing volume of the , to greatly improve the permeability, and to make wearing and exhaling more comfortable.the human face shape to ensure the tightness, to increase the breathing volume of the products, to greatly improve the permeability, and to make wearing and exhaling more comfortable. Premium Quality - Advanced skin-friendly non-woven fabric electret melt-blown fabric provides easy breath. The moderate thickness for particle absorption. High efficiency in filtering out particles. Specially made with safe materials that have an unscented smell and has no chemical odor for your convenience and pleasurable usage. Ergonomic Design - Durable & stretchable straps with dual point attachments, ensuring reliable protection. Metal nose bridge clip improving the airtightness. High-quality elastic ear bands are comfortable to wear for long periods. Disposable Ear Loop 5 Ply Face Protection filtrate 95% a 0.3 micron. Made of 5-layer, non-woven fiber with soft and breathable fabric while providing the most effective protection. Guaranteed to be Hypoallergenic, non-toxic, and suitable even for the most sensitive skin. Ear Loop closure. Non Woven Fabric.