20Pcs PM2.5 5 Layer Filtration Disposable Activated Carbon Filter Mouth Muffle Pad for Adult

Fits the face, with mouth-muffle pad, no shortage of mouth-muffle, just change the pad without changing the mouth-muffle. Increase the number of use times of mouth-muffle to maintain the hygiene of the mouth-muffle, convenient and practical. Disposable mouth-muffle activated carbon filter pad, suitable for a variety of mouth-muffles, easy to change and replace. Condition: 100% Brand New Item Type: Activated Carbon Filter Material: Activated Carbon Breathing Valve Equipment: None Function: Color: Gray Shelf Life: Two Years Product Size: Approx. 12.5 x 8 cm Celsius 4.9 x 3.2 in Weight: Approx. 51g Celsius 1.8oz