Quick Details Place of Origin:Zhejiang, China Brand Name:JH Model Number:JH8501 Product name:Foldable face mask Color:Blue Function:Anti-dust/Anti-pm2.5/Anti-haze Valve:Without valve Type:Earloop Class:FFP2 / N95 /N99 Feature:Inner aluminium stripsChina Pm2.5 Mask website:http://www.fupinghealthcare.com/pm2-5-mask/