brand new and high quality Features: No more worrying about masks being inadequat, This breathing insert protective mouth mask filter allows your mask to be reused without worrying about no mask, saving for time and money, and very environmentally friendly Independent packaging, convenient and hygienic. The mask pad is suitable for disposable masks,and various ordinary masks. Widely Use:In the restaurants, beauty salons, nail shops, pet shops ,Gray for sky, fog weather and cleaning as well as other environments that require respiratory for protection for dust, salon, Note: Please be kindly noted, the listed product is produced and distributed abroad and subject to the laws of its country of origin. It is recommended to replace the filter gasket every two hours for best results and protect your for health. Specification: Layer: 5 Layers Mask Color: random Filter Pads Size:As shown,random Material: :Filter spunbonded nonwovens Melt-blown nonwovens Filter spunbonded nonwovens Note: Please be kindly noted, the listed product is produced and distributed abroad and subject to the laws of its country of origin. How To Use: step1:After washing your hands, take out the mask filters step2:place the mask pad in the mask to prevent slipping step3:Install the mask pad,fit your face and wear the mask correctly Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 20 x Mask Pad(other accessories demo in the picture is not included.)