In Whole Body Cryotherapy there is a single-person cryotherapy chamber where the individual’s head is above the cryotherapy unit only exposing the body while allowing eye contact and communication
Maybe a more profitable and accessible business case would be to have something like those self-service tanning salons rather than selling units of these chambers. You go in the cryo-salon, purchase a time slot, enter the chamber, get therapy, exit the chamber. COOL (literally)!