CPSC campaign 06550
Hazard
The smoke detectors could experience reduced sensitivity to smoke in conditions of high humidity and high temperature. If this occurs, these detectors could delay detecting the presence of smoke in the event of a fire.
Remedy
Commercial building owners and managers with recalled smoke detectors will be contacted by one of the distributors to verify that the detectors in their fire detection system are included in the recall and, if so, to arrange for a free replacement.
The text above is quoted verbatim from the CPSC record. Confirm the affected units and the remedy with the manufacturer or CPSC. Recall data may be incomplete, delayed, or superseded.