We have an employee who is the "smelly kid in class". He works an overnight shift with 1-2 other individuals in close quarters at a datacenter facility. It's unbearable for the coworkers to work with him in a hot aisle of a server area or standing close to him at any point. The mgr has tried sending out general hygiene notices to all techs to hint at this as well as encourage everyone to leave a clean shirt and deodorant in their locker. There is also a shower on site. He's mentioned things to this individual specifically as well but it appears he hasn't gotten the hint. Any suggestions for next steps to take here?