Due to the crazy Canadian wildfires the Detroit area has one of the nations highest (worst) AQI, air quality indexes, the last day or so at 299!
https://www.accuweather.com/en/us/detroit/48226/air-quality-index/348755
That got me thinking about using a mask to filter out the smoke particles and still use a two way radio. They make some systems to use with some types of masks.
https://www.mirasafety.com/blogs/news/communications-earpiece-gas-mask-comms
Anyone ever use something like this?