According to the World Health Organization, over 5% of the world’s population (466 million individuals) has disabling hearing loss. This includes 34 million children. The figure is expected to rise to 900 million by 2050.
Deafness and hearing loss. World Health Organization. 2020 March 1. https://www.who.int/news-room/fact-sheets/detail/deafness-and-hearing-loss
All the more important to have a Clear Expression Face Covering to support those who are vulnerable.