The air filter at the end of the hose has a threaded connector for attaching to a face mask or a clip-on connector for a surgical mask.

TH28992UActive Publication Date: 2026-09-29บริษัท บีเอช โปร อินเตอร์เนชั่นแนล จำกัด
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Patent Information

Application Number
TH2103001630
Authority / Receiving Office
TH · TH
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2021-06-11
Publication Date
2026-09-29
Estimated Expiration
2027-06-10

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