In terms of structural design: Stereoscopic cup-shaped shape: This shape creates a certain space between the wearer's face and the mask, making breathing smoother and reducing stuffiness; On the other hand, it reduces the contact area between the mask and the face, reducing the pressure and discomfort on the facial skin caused by long-term wearing. Moreover, the cup-shaped structure can provide good support for the filtering layer, maintain the shape and stability of the filtering layer, and ensure the consistency of the filtering effect. Adjustable components: Some disposable cup-shaped respirators are equipped with adjustable nose clips or headbands. The adjustable nose clip can be adjusted according to the shape of the nose bridge of different people, ensuring a tight fit between the mask and the nose bridge, preventing air leakage from the nose bridge, and improving the protective effect; Adjustable headbands allow wearers to adjust according to their head size and wearing habi…

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