Failure to ventilate: Technical error

While investigating about the technical check-up before assembling the circuit, we found that the technician who had assembled the circuit, forgot to remove the cap from the ventilator circuit [Figure 2]. [4],[5] The nontechnical staff of the operation theatre should be educated and trained about correct assembling and preuse checks and lastly the anesthetist should check and confirm the proper working of the equipments before anesthetizing the cases.