Air purification device for air handling units
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United States of America Patent
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-
Jun 1, 2004
Grant Date -
Nov 20, 2003
app pub date -
May 17, 2002
filing date -
May 17, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An air handling unit having a unique air treatment device, and a method for retrofitting existing air handling units to include the air treatment device. The air handling unit includes a casing defining a space for conditioning air, and forming an inlet and an outlet; a cooling coil supplied by a central chiller system and disposed inside the casing; a sump located below the cooling coil; and a supply air blower for drawing air into the casing, and forcing air through the cooling coil. The air handling unit further includes a spray header secured inside the casing, adjacent the cooling coil; and a pumping system for delivering liquid solution from the sump and pumping the solution onto the cooling coil and the solution flows downward over the cooling coil and into the sump below, and the solution treats the air flowing through the cooling coil. In a preferred embodiment, the liquid solution is an anti-bacteria solution, and the solution kills bacteria in the air forced through the cooling coil structure. The liquid spray air treatment device may be effectively operated to kill even extremely small bacteria such as anthrax.
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