HPS you never want to exceed 26 C / 79 F in bloom. If you smell the plants when walking into the grow thats your terpenes vaporizing off the buds. My buddies dad lets his grow room stay 75 night 82 day with HPS and his weed is literally inert of taste or smell because of that.. Not to mention he wet trims the weed and just dries it doesn't cure.. You walk into his grow and even with 4 huge carbon scrubbers going you can just smell the terpenes in the air.