Nano-breathing mask
A mask and face technology, applied in respiratory protection devices, fire rescue, life-saving equipment, etc., can solve the problems of inability to provide, lack of antibacterial methods, and inability to fit the face, so as to reduce odor, reduce invasion or escape , reduce the effect of fogging
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[0047] refer to figure 1 : The figure shows a side view with the nose angle and space 1, the comfortable breathing space 2 formed in front of the mouth 2a, the chin recess and space 3, the seam of the mask and the strap is shown as mark 4, and The mid-point, balance point or pivot point of the mask 6 is shown with dashed lines to illustrate the point of minimum movement of the mask. The lower strap 5 is attached to the mask at an intermediate point between the chin and the pivot point, while the upper strap 7 is attached at the upper part of the mask. Importantly, the angle a of the upper strap is between 30 and 60 degrees depending on the face of the wearer, and is preferably 45 degrees. Similarly, angle b is between 10 and 40 degrees depending on the face of the wearer, and is preferably 25 degrees.
[0048] refer to figure 2 : This figure is a substantially similar figure, but importantly, shows that the upper belt angle a1 is between 40 and 70 degrees, but preferably 5...
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![application no application](https://static-eureka-patsnap-com.libproxy1.nus.edu.sg/ssr/23.2.0/_nuxt/application.06fe782c.png)
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