Heat h2o: Marc Jiggins, managing director at Pyramid Eco, implies, 'Putting a bowl of h2o close to a radiator or heating vent lets it evaporate slowly, incorporating Mild humidity on the air. In this article’s a table showing ASHRAE’s suggested maximum indoor humidity concentrations depending on out of doors temperature: https://humidity-control78776.bloginder.com/38834254/not-known-factual-statements-about-humidity-control