openFDA Device Enforcement
Report-date coverage
June 20, 2012–July 08, 2026
Known gap: openFDA describes 2004-present coverage, but the current export has no report-date records in this interval.
openFDA Device Recall
event_date_initiated coverage
June 01, 1997–June 30, 2026
Enforcement coverage uses report dates; product initiation dates can precede those bounds. Device-enrichment coverage uses FDA event_date_initiated.
Product dates, classifications, firms, and source wording remain attached to their individual rows.
Opening this dossier never hides products that did not match a prior timeline filter.
device · product 1 of 1
PURE OXYGEN CONCENTRATOR, CHAD Drive, Models CH5000 and CH5000S
Post-market surveillance for Pure Stationary Oxygen Concentrators model CHSOOO and CHSOOOS demonstrate an aggregate complaint/service rate greater than 35% for low oxygen purity (output oxygen below the published specification).
These labels are deterministic app interpretations, not FDA categories.
Official device-enrichment evidence · Unknown
An exact joined enrichment record exists, but none supplies supported root-cause wording. This is not an FDA finding of an unknown cause.
Post-market surveillance for Pure Stationary Oxygen Concentrators model CHSOOO and CHSOOOS demonstrate an aggregate complaint/service rate greater than 35% for low oxygen purity (output oxygen below the published specification).
Code information
UDI #(s): 00814470020013 (model CHSOOO) and 00814470020006 (model CHSOOOS): All serial numbers
