This creates accountability and support
Unlike dust or mould, tobacco smoke carries hundreds of chemical compounds that bond to duct surfaces, coil insulation, and drain components and then recirculate continuously through the system every time the AC operates
For instance, in the case of 69mm length cigarettes, the GST rate will move from 28% to 40%
References Akbar A, Han B, Khan AH, Feng C, Ullah A, Khan AS, He L, Yang X (2022) A transcriptomic study reveals salt stress alleviation in cotton plants upon salt tolerant PGPR inoculation
The problem is that many do not want to come out publicly with it, either because of privacy reasons or because of fear of reputation damage