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Dougler’s T-Zone Technology is a solid tension technology to maintain the position lest the mask slide down or be taken off when doing a strenuous sports activity.
Also, it is one of the core technologies of Dougler which enable activated air to be circulated during physical activities.
The 2-Layer mixed structure of T-Zone is a technology protected by the patent law and produced by the fastidious self-production management system.
All products of Douger are produced through manual operation by only skilled engineers.
Dougler’s T-Zone Technology is its own new independent technology.
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