I have a hypertherm powermax 30air , my first plasma so I don't have much of an opinion on anything else. I also have a harbor freight portable bandsaw that I've used to cut with and it works like a charm.
Howard Leights, love mine
https://smile.amazon.com/Howard-Leight-Amplification-Electronic-R-01526/dp/B001T7QJ9O/ref=sr_1_3?keywords=howard+light&qid=1558761192&refinements=p_72%3A2661618011%2Cp_85%3A2470955011&rnid=2470954011&rps=1&s=gateway&sr=8-3