- Patent
- Utility Model Patent - Patent Number: 201630385589.1
- Brand
- WATERTIME
- Breathing System
- Drytop breathing system with infinite airflow circulation
- Removable Breathing Tube
- Conveniently detachable by pushing and pulling the buckle at the back of the mask tube
- Anti-Reverse Water Inflow
- Equipped with a three-float DryTop breathing system for effective waterproofing
- Safety Rating
- ★★★★★ for Drytop breathing tube, ★★ for regular breathing tube