Product features:
1. Equipped with an anti backflow device, it effectively prevents sand powderand water vapor from flowing back to protect the cleanliness and hygiene ofthe dental chair pipeline;
2. 2-hole/4-hole and quick connect options are available, suitable for dentalchairs of various brands both domestically and internationally, with convenientconnection and wide applicability;
3. There is no oral mucosal irritation through mucosal stimulation accordingto the biological test protocol.