"English Name: Adult Mask/Kid Mask (with 6 filters)" Product material: Polyester (Polyester) Full width printing, single side printing [Material description] 100% polyester fiber (polyester), 5-layer activated carbon filter, M-shaped nose clip [Product performance] Very soft, breathable, anti-splash water, washable, with buttons to adjust the tightness, you can change the length of your face according to the contours of your own face, in order to avoid leaving traces on your face after taking off. Protect your mouth and face from dust, cold, dust, pollen, allergies, fog and haze, tail gas emissions, passive smoking, and more Suitable for cycling, camping, running, traveling, climbing and daily use. (Non-medical mask) [Accessory structure] One Mask has six filters ¡¾ Instructions ¡¿ Hand washing is recommended. Do not bleach. [Special note] Due to different measurement methods, the error of this size data within 1-2cm is a normal phenomenon. Product size: Size width (cm) Height (cm) Adult 20*15cm Kid 17.5 * 13 cm