For COPD screening compatible with Vitalograph Reports Software The copd-6 usb identifies those at risk of COPD at the pre-symptomatic stage to allow early medical intervention and facilitate better clinical outcomes. This pioneering device screens out those whose FEV1 is normal, and who therefore do not have COPD, without the risk of false COPD negatives. By linking to your PC the copd-6 usb produces electronic & hard copy reports.