Haws 8905 features the medically acclaimed Axion MSR eye/face wash head assembly (patent pending). This revolutionary inverted flow design is the only product on the market that provides a Medically Superior Response consistent with all EMT, emergency room and doctors' office protocols by sweeping contaminants away from the vulnerable nasal cavity. Traditional eyewashes irrigate from the outside edge of the eye back toward the nose, where contaminants can then be flushed into the nasal cavity through the lacrimal punctum, nature's ocular cavity drain. Unit is activated with simple squeeze lever operation. Wall mounted eye/face wash and body spray shall include an Axion MSR eye/face wash head which features an inverted directional laminar flow which achieves zero vertical velocity supplied by an integral flow control, chrome plated brass stay-open squeeze lever valve, 12-feet (365.8 cm) yellow recoil hose with chrome-plated swivel fitting at one end, universal sign, and 1/2-inches IPS inlet. In order to comply with state codes the use of a vacuum breaker is required with all hand held eye/face wash body spray units (Haws offers model SP212).