Patent ID: 6477322
Filing Date: 2002-11-05
Classification: B01D,F24F

Abstract:
A fanless air humidifier comprising a base, a boiling tray adapted to be seated in the base defining an air passage between the boiling tray and the base, and a water supply for feeding water to the boiling tray, the boiling tray comprising a bottom wall and a peripheral wall extending from the bottom wall a predetermined height, a vapor chamber housing having an open top end forming a chimney column directly above the boiling tray, an electrical heating element being seated above and partially within the boiling tray, said boiling tray comprising tubular pipes extending from the bottom wall and communicating with the air passage wherein the tubular pipes extend at least the height of the peripheral wall of the boiling tray and the pipes are aligned with the vapor chamber to communicate air directly from the air passage to the vapor chamber such that water is heated in the boiling tray to evaporate into the vapor chamber where it is mixed with ambient air passing through the pipes and induced to flow through the chimney.