(b)(4) the sample was returned for evaluation.A visual exam was performed and no defects were observed.The device could be inflated and deflated normally.Deflation was observed to be slightly sluggish when the red plug was opened; however, by a slight pinch on the sides of the red plug, the deflation improved.A device history record review was performed and there were no issues found that could relate to the reported complaint.Based on the investigation performed, the reported complaint could not be confirmed.The device was found to be functional and could be inflated and deflated using the check valve; however, deflation was sluggish with the red plug open.This could be due to inevitable expansion and contraction of the components material during logistics movement over time.
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