EE WORKS IN LABORATORY.SHE WAS BURNING SAMPLES UNDER A HOOD. THE HOOD FAILED & SHE WAS NOT AWARETHAT IT FAILED. SHE OPENED THE HOOD & WAS EXPOSED TO ACID FUMES.SHE INGESTED THE FUMES. SHE DID NOT GET OUT OF THE ENVIROMENT & LEFT THE HOOD OPEN. SHE DID NOT REPORT THE ACCIDENT UNTIL THE END OF HER SHIFT & DID NOT GO TO DR FOR 24 HRS