| Product No. | HF0101 | ||
| Packaging | 1pc/pack, 25pcs/box, 12box/ctn | ||
| Implementing standards | GB2626-2019 | ||
| Adjustable built-in nose clip, sponge nose pads, close fit to face to prevent leakage |
| 5-layer structure, high efficiency and low resistance |
| 5 S-hooks per box, which can be placed at the back of the neck to improve comfort |
