The worst is sweat in the eyes you can’t break seal to wipe the stinking out and you can just run off the drill deck to a clean Air spot even if you could with one eye down no depth perception and spinning metal is a disaster waiting to happen. Zipper fracs are the worst we will be drilling a well head 50 feet from the prior well head that’s under a frac job so you have an active rig and a frac job onsite at the same time it’s absolute worst time.
Mask work sucks...