This is the only fully approved bidet for installation with no additional backflow prevention device required. And, it is packed with features previously not available.
WaterMark for the InteliClean Air (00 approval specifies that the Intelicorp Air 9000 includes Integral Air Gap High Hazard Backflow Prevention Device that Complies with AS 2845.2:2010
and tested to AS 2845.2:1996 Appendix A Back Siphonage Test