Re: Humidity control
No. It's not. I used to smoke (switched to vaping) and cleaned the inside of my PC at least quarterly. This meant a full strip down, wiping down the board with 91% and qtips, cleaning all the fans and heatsinks, etc. A complete environment clean.
All this stemmed from a position at a company that had to replace the payroll computer at least yearly, because the elderly lady working on it chain smoked. Computers can die of smoke inhalation.