(b)(4).A device history record (dhr) review could not be performed as the lot number is unk.The device was not available for eval; therefore, the complaint could not be confirmed.Although there is no inventory of the involved prod available at the mfg facility at this time, current production of catalog number 1706 (up-draft ii opti-neb nebulizer w/adult) that uses the same nebulizer components were tested and no issues were found that could lead to the condition reported by the customer.If the sample becomes available, a f/u report will be submitted with investigation results.
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