You own and run subsidized housing and recently several renters have been complaining about being exposed to secondhand smoke. The renters say that the secondhand smoke is bad for their health and makes it harder to manager their physical and mental disabilities. They want you to make the building smoke free. You understand that secondhand smoke can be unhealthy and are working to limit exposure to secondhand smoke in the building. New renters have a no-smoking clause in their lease. You move some renters who smoke into different units further away from the non-smokers. You put notices up for no-smoking zones around the building and you follow up to make sure these zones are kept smoke-free. You make a rule that anyone working at the building is not allowed to smoke on the property. You get some quotes for a new ventilation system for the building. It turns out to be too expensive for this fiscal year, but you make a plan to replace it in the future. In the meantime, you have the existing ventilation system cleaned and maintained so it is working as best it can.