Zen-O Lite Oxygen Concentrator (Ohio Medical) – Calibration Error (2025)
Erroneous calibration may cause incorrect oxygen purity alarms on medical devices.
This AI-generated summary is provided for general informational purposes only and is derived from publicly available recall notices. It supplements but does not replace official agency classifications or safety instructions.
Check Your Product
According to the U.S. Food and Drug Administration (FDA)
Product
GCE HEALTHCARE Zen-O lite, Portable Oxygen Concentrator, Model RS-00608-X-S
Brand
Ohio Medical Corporation
Lot Codes / Batch Numbers
Serial Numbers: ZL316367, ZL316446, ZL316462, ZL316475, ZL316481, ZL316484, ZL316490, ZL316493, ZL316503, ZL317057, ZL317087, ZL317088, ZL317090, ZL322386, ZL322387, ZL322390, ZL322392, ZL322409, ZL322412, ZL322439, ZL322441, ZL322442, ZL322443, ZL322445, ZL322447, ZL322451, ZL322455, ZL322456, ZL322462, ZL322463, ZL322466, ZL322467, ZL322470, ZL322472, ZL322473, ZL322837.
Products Sold
Serial Numbers: ZL316367, ZL316446, ZL316462, ZL316475, ZL316481, ZL316484, ZL316490, ZL316493, ZL316503, ZL317057, ZL317087, ZL317088, ZL317090, ZL322386, ZL322387, ZL322390, ZL322392, ZL322409, ZL322412, ZL322439, ZL322441, ZL322442, ZL322443, ZL322445, ZL322447, ZL322451, ZL322455, ZL322456, ZL322462, ZL322463, ZL322466, ZL322467, ZL322470, ZL322472, ZL322473, ZL322837.
Ohio Medical Corporation is recalling GCE HEALTHCARE Zen-O lite, Portable Oxygen Concentrator, Model RS-00608-X-S due to Erroneous calibration values, potentially resulting in: as the device ages, oxygen purity will gradually decrease to the point where the device alarm. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
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.
Recommended Action
Per FDA guidance
Ohio Medical issued a Field Safety Notice to its consignees on 05/08/2025 followed by telephone calls on 05/13/2025. The notice explained the problem with the device, potential risk, and requested the devices be returned for correction. The notice further stated: "The Field Safety Notice is communicated to all impacted customers and is communicated to competent authorities in the affected markets. Receivers should pass this FSN on to all persons with a need to be advised from within your organization or to any organization where the potentially affected products have been supplied. Please consider end users and others within the supply chain in the circulation of this notice."
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 10, 2026