Each package contains 10 PCS 5 layers of protection and efficient filtering. Made of reusable activated carbon made of cotton ensures that your skin stays fresh. Features an adjustable nose piece for comfort. Two strap design helps provide a secure seal. Foldable, 3D and light weight design. Excellent filtration performance, particle filtration efficiency(PFE) 95% Low breathing resistance, let you breathe still smoothly Specifications Product Name: KN95 Respirator Face Mask Aerosol Type: Non-Oil Material : qualified skin-friendly non-woven fabric, hot air-through nonwoven fabric(keep warm), top grade melt-blown fabric(filter) Color: White Size: Universal Exhalation Valve: NO Strap Attachment: Stapled Adjustable Nosie Clips: Yes Standards: KN95 (China GB2626-2006) Manufacturer: Distributed by HOTLONG Group USA. Manufactured in China by WUXI Huilu Technology Co., Ltd