雙濾罐、呼吸氣閥設計，呼吸阻力極低
· 熱塑材質，柔軟舒適，經濟可靠
· 附贈吸汗棉口鼻墊，增加佩帶舒適性，可清洗更換
NP306 Half Mask
· Double filter，design of breathing to make force resistance very low
· Material：thermal plastic，soft，comfortable ，economic and reliable
· The cover that absorbs the sweat，more comfortable，easy to clean and change
