You are getting good advice from others. It is so important to stay on top of this as SNHL tends to be progressive.

SNHL can be delayed or even prevented by taking precautions related to noise exposure. Noise is everywhere. It is difficult to avoid. Ask the audiologist about ear protection suitable for the child's age. Try not to expose the child to extreme noise if at all possible. That includes places where loud music and other forms of noise are present.

I suggest you and your family check the following website for more information about hearing protection. https://www.noisyplanet.nidcd.nih.gov/