The instructions for use (IFU) for the Pneumostat Chest Drain Valve and for the Express Mini 500 do not provide sufficient precaution against draining the device for continued use. Additionally, the IFUs do not provide sufficient precaution or warning against the use of the device outside the healthcare setting. The notices for this recall give the appropriate precautions to the end users. Recall start date: March 6, 2023