Promedix PR-770W Cordless Irrigator Dental Teeth Care IPX7Promedix PR 770W Cordless Irrigator The PR 770 is a modern cordless irrigator, whose strong stream of water precisely removes food residue from the interdental spaces, maintaining oral hygiene. A strong stream with a force of up to 8. 5 Bar eliminates the problem of under cleaning orthodontic appliances, bridges or implants. Irrigation can significantly reduce bleeding from the gums and the amount of bacteria that can cause inflammation. Promedix