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Expandable pleats provide a great stability on the user's face.
- Usually, when the user wears other mask in the market, the mask will be pulled off when the user moves his/her chin up and down vigorously. When the mask is not positioned correctly, the facial fit will be getting worse immediately.
- However, SH4100 Series have the pleats at the upper and lower edges which can provide expandable areas to stabilize the facial movement. This unique design is patented in Europe, Taiwan, and China.
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 Comfortable
With softer inner layer and large nose foam, the comfort on the face is excellent.
Excellent Facial Fit
It goes without saying and such a design can provide an excellent facial fit for a wide range of facial sizes.
Individually Packaged for Easy Storage
Each mask is individually packed inside a plastic bag. The user can store the mask inside his desk or pocket for future usage.
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New Exhalation Valve
A brand-new design exhalation valve provides lower exhalation resistance.
Comfortable
With softer inner layer and large nose foam, the comfort on the face is excellent.
Easy for Use
Pre-shaped nose bridge skips the adjustment of nose clip.
Excellent Facial Fit
Ergonomic shape with a larger nose foam for a better facial fit.
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