GCE HEALTHCARE Zen-O lite, Portable Oxygen Concentrator, Model RS-00608-X-S
Erroneous calibration values, potentially resulting in: as the device ages, oxygen purity will gradually decrease to the point where the device alarms to indicate low oxygen purity will be incorrect.
US Nationwide distribution in the states of AR, FL, VA, ND, MS, MN, CA, NV, KY.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-1980-2025