DC for AC Swamp Cooler -- PART 3

[@Andie-]

Is there a particular breathing mask that you like? I'm looking for one with good air flow. I appreciate you taking the time to explain each step.

[@j2jet193]

Andy H, I haven't researched much on breathing masks, as I only need to wear one briefly for these tasks. Maybe there's some videos posted that cover (no pun) the subject in-depth.