[ararar]

Why can't this be repurposed as a lung cleanse? I imagine that heavy smokers' lungs (or coal miners') could benefit from a wash and rinse, perhaps with some vibration assistance. With a medical team standing by to resuscitate.

[Arrath]

God knows I've breathed in enough silica dust that I could go for something like this.

[RosanaAnaDana]

Might cause more damage on the way out.