Please according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.
|Advantages||Replacement, Anti Haze, Mask Accessories|
|Outer Size||40mm x 35mm/1.57' x 1.38' (Approx.)|
|Inner Diameter||18mm/0.71' (Approx.)|
1.Made of ABS material, durable to use.
2.Mask accessories, which should be used with mouth masks (not included).
3.Suitable for sports masks, running masks, active carbon masks, etc..
-Due to the light and screen setting difference, the item's color may be slightly different from the pictures.
-Please allow slight dimension difference due to different manual measurement.
1 Pair of Mask Valves (Mask Not Included)