I don’t have an answer I’m afraid, but some years ago I did spend some months sitting opposite an Indian guy who snorted every minute or so, and I just couldn’t concentrate. I had to get up and leave several times a day to calm my frustration. Nowadays I’d put on the Bose noise cancelling earbuds. Thankfully he didn’t make it through probation.
I had another Indian guy working for me once who always brought in smelly, often vomit inducing, food from home for both breakfast and lunch, and ate it at his desk next to mine. I just got up and left when he was eating.
What I should’ve done was to have a word with HR and have an edict that all hot food should be eaten in the canteen, not at desks/benches, but I didn’t really get on with the HR people, and I was a contractor anyway. Maybe you could have a word with HR for the food thing? It’s about time we had a story about HR doing something useful. After all, one could spin a yarn about the incompatibility of hot food and equipment? Maybe even personal safety, such as contaminating mixing food with flux etc?
I don’t know how to deal with an all round 24/7 smelly person, other than to have a word with HR, but I feel your pain and do have a story for you.
About twenty odd years ago, a prestigious company I was working for outsourced their IT support to an Indian company, with employees shipped in direct from India on to site. Unfortunately there were some cultural incompatibilties, such as washing their feet in the sinks in the executive washroom, the snorting thing, and an interesting way to sit on a Western toilet which wasn’t at all hygienic. They lasted about three months before it was in sourced again, the upper echelons discovering that maybe it hadn’t been the best idea.