CAIRE MODEL: FreeStyle Comfort Oxygen Concentrator - Product Usage: The FreeStyle Comfort Oxygen Concentrator is intended for the administration of supplemental oxygen. The device is not intended for life support nor does it provide any patient monitoring capabilities.
Four units of European version FreeStyle Comfort were distributed in the US, but were not cleared for use in the US..
US Nationwide distribution in the states of MI, CA, CT.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-0805-2020