Pure tone audiometry is a subjective hearing test that should be done as per the British Society of Audiology guidelines in a soundproof room starting with the better hearing ear. A 40db tone is initially presented at 1KHz and increased until a response occurs. Following a satisfactory positive response, the level of the tone is reduced in 10-dB steps until no further response occurs. The level of the tone is then increased in 5-dB steps until a response occurs. This process is repeated until the subject responds at the same level 50 % or more times which is the hearing threshold level.[1]