Digital VIPR ROC-9839 Roberts Oxygen Ready to Use Digital VIPR (head only) ROC-9840, Roberts Oxygen Ready to Use Digital VIPR System (with E-size cylinder) MNDR-600, Western Oxytote DTE Digital VIPR (head only) MNDS-602, Western Oxytote DTE Digital VIPR System (with D-size cylinder) MNDS-603, Western Oxytote DTE Digital VIPR System (with E-size cylinder)

Reason: Gauge malfunction: Digital gauge displays an incorrect tank pressure - displays pressure higher than actual tank pressure. This may lead to tank running out of oxygen during use without audible alarms, potentially leading to an out of oxygen event and no flow.

Code information: ROC-9839, Roberts Oxygen Ready to Use Digital VIPR (head only) o UDI-DI: B929ROC98390 ROC-9840, Roberts Oxygen Ready to Use Digital VIPR System (with E-size cylinder) o UDI-DI: B929ROC98400 MNDR-600, Western Oxytote DTE Digital VIPR (head only) o UDI-DI: B929MNDR6000 MNDS-602, Western Oxytote DTE Digital VIPR System (with D-size cylinder) o UDI-DI: B929MNDS6020 MNDS-603, Western Oxytote DTE Digital VIPR System (with E-size cylinder) o UDI-DI: B929MNDS6030 All units distributed from 05/29/2020 to 12/7/2022.

Distribution pattern: US Nationwide distribution in the states of CO, CT, ID, MD, MT, TN, WA.