Adult masks with a three-layer high-performance cut filter and a three-dimensional design, boasting a filter performance of over 99.8%. - Model Name: Bi-COLOR 3D MASK - Size: Adult size (approx. 13.8 x 11 cm) - Quantity: 30 individually wrapped masks - Filter Performance: BFE 99.9%, VFE 99.9%, PFE 99.8% - Features: 3-layer cut filter, three-dimensional design, ear-friendly design Photos 1-5 show the masks I am currently using. Photo 5 shows the unopened packaging (plastic) of the box. I will open the box and fold it for shipping. These have been stored at home. Thank you for looking.