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Wide knitted headband design enhances comfort for long time wearing |
Adjustable built-in nose clip, sponge nose pads, close fit to face, prevent leakage |
4-layer structure, high efficiency and low resistance |
With breathing valve, can timely remove moisture and exhaust air in the cavity, suitable for long time wearing |
Product No | HF0204V |
Packaging | 25 packs/box, 12 boxes/carton |
Implementing standards | GB2626-2019 |