SFGTV December 14, 2012
Close proximity to units where there are smokers in apartment buildings or multi unit buildings, they are in danger of the smoke seeping into or kind of coming into their units or common areas as well and this can result in prospective tenants really being exposed to hazardous air in their buildings. I think this is an important measure, too, that will really help prospective tenants finding out more where they may be exposed to second hand smoke but its usually after they sign a lease right now...
Source: archive.org