The challenge

The client needs to wear a positive air pressure mask which covers her nose and mouth at all times, but the mask makes it difficult for others to hear her when she speaks.

The solution

A miniature microphone was fitted to the mask and an amplifier-speaker constructed. The amplifier can be powered either by a battery or by an external plug-top power supply.

The benefit

The client can now be heard more clearly by those around her when she speaks.