Mobile air decontamination and purification unit

An air treatment unit for use in an air purification and filtering system, the air treatment unit comprising an ion generator arranged to ionize an airstream passing through the air treatment unit, an electrostatic filter located downstream of the ion generator, wherein the efficiency of the electrostatic filter is enhanced by ionization of the airstream and a catalyst located downstream of the electrostatic filter that is arranged to significantly reduce the concentration level of reactive species in the airstream before the airstream exits the air treatment unit, wherein the air treatment unit is housed in a plurality of immediately adjacent stacked trays, each tray being a self contained unit that houses at least one component of the air treatment unit therein, each tray being formed from molded plastic and including a box, a lid that covers the box, an upstream wall having an upstream opening, a downstream wall having a downstream opening, and substantially sealed side walls, wherein one of the upstream and downstream walls is part of the box and the other of the upstream and downstream walls is part of the lid, and wherein the upstream and downstream walls of each tray extend laterally inward from the tray's side walls such that the upstream and downstream walls extend at least partially over the component housed by the tray to effectively retain such component within the tray, the air treatment unit further comprising seals located between facing downstream and upstream walls of adjacent trays that are arranged to minimize leakage between adjacent trays, and wherein the stacked trays include:

• a first tray that houses the ion generator therein;
• and
• a second tray located downstream of the first tray that houses the electrostatic filter.

A mobile air treatment system comprising:

• a housing having a door;
• an air intake located near a bottom end of the housing;
• a treated air outlet located near a top end of the housing, there being an air flow path between the air intake and the air outlet;
• a prefilter positioned within the air flow path and arranged to filter air drawn into the air flow path;
• a first chamber located within the airflow path downstream of the air intake and the prefilter, the first chamber being accessible through the door;
• and
• a fan arranged to convey air along the air flow path;
• an air treatment unit located downstream of the first chamber and the prefilter;
• a removable cooling unit positioned within the first chamber, the cooling unit being arranged to pre-cool at least some of the air that passes through the air treatment unit, wherein the removable cooling unit is positioned as a free standing unit within the first chamber;
• and
• an electrical control system carried by the housing, the electrical control system being arranged to provide power and any required control to at least the fan and the removable cooling unit;
• and
• wherein the removable cooling unit has a first electrical connector that may be coupled to the electrical control system, a water input coupling and a water outlet coupling, and whereby the cooling unit may be installed by placing the cooling unit as a freestanding unit in the first chamber through the door, and coupling the electrical with a second electrical connector associated with the electrical control box and coupling the water input coupling with an associated water supply and coupling the output couplings with an associated water drain.

A transportable air treatment system comprising:

• a housing having a door;
• an air intake located near a bottom end of the housing;
• a treated air outlet located near a top end of the housing, there being an air flow path between the air intake and the air outlet and the distance between the air intake and the air outlet being at least 150 cm;
• a prefilter positioned within the air flow path and arranged to filter air drawn into the air flow path;
• a first chamber located downstream of the air intake, the first chamber having side walls and being sealed relative to the door;
• a second chamber located downstream of the first chamber, the second chamber having side walls and being sealed relative to the door;
• a fan support plate that defines a boundary between the first and second chamber;
• a fan mounted on the fan support plate, the fan being arranged to convey air along the air flow path, wherein the fan is located substantially centrally relative to the side walls of the first chamber and the side walls of the second chamber, and a ratio of the hydraulic diameter of the second chamber to the diameter of the fan is at least 1.4;
• an air treatment unit located downstream of the second chamber, the air treatment unit including a plurality of stacked trays and being arranged to further filter air conveyed along the air flow path;
• and
• a clamp system including a linkage system and a handle that is pivotally connected to a linkage system and operable to move a frame member between compression and release positions through the linkage system, wherein in the compression position, the frame member and clamp system are operable to clamp the stacked trays together to help seal the stacked trays and when the handle is in the release position, the clamp system supports the trays in a spaced apart manner;
• and
• wherein the second chamber is substantially balanced aerodynamically from side-to-side and from front-to-back as seen by the fan in order to help reduce the probability of air pressure imbalances on the fan that contribute to noise generation.

An air treatment system comprising:

• a housing having a door;
• an air intake located near a bottom end of the housing;
• a treated air outlet located near a top end of the housing, there being an air flow path between the air intake and the air outlet and the distance between the air intake and the air outlet being at least 150cm;
• a prefilter positioned within the air flow path and arranged to filter air drawn into the air flow path;
• a first chamber located downstream of the air intake, the first chamber having side walls and being sealed relative to the door;
• a second chamber located downstream of the first chamber, the second chamber having side walls and being sealed relative to the door;
• a fan support plate that defines a boundary between the first and second chamber;
• a fan mounted on the fan support plate, the fan being arranged to convey air along the air flow path, wherein the fan is located substantially centrally relative to the side walls of the first chamber and the side walls of the second chamber, and a ratio of the hydraulic diameter of the second chamber to the diameter of the fan is at least 1.4;
• an air treatment unit located downstream of the second chamber, the air treatment unit being arranged to further filter air conveyed along the air flow path;
• and
• a removable cooling unit positioned within the first chamber, the cooling unit being arranged to pre-cool at least some of the air that passes through the air treatment unit;
• and
• wherein the second chamber is substantially balanced aerodynamically from side-to-side and from front-to-back as seen by the fan in order to help reduce the probability of air pressure imbalances on the fan that contribute to noise generation.

An air treatment unit for use in an air purification and filtering system, the air treatment unit comprising a plurality of immediately adjacent stacked trays, each tray being a self contained unit that houses at least one associated component of the air treatment unit therein and includes an upstream wall having an upstream opening, a downstream wall having a downstream opening, and substantially sealed side walls, wherein the upstream and downstream walls of each tray extend laterally inward from the tray's side walls such that the upstream and downstream walls extend at least partially over an associated component of the air treatment unit housed therein to effectively retain the associated component within the tray, and wherein the stacked trays include:

• a first tray having an ion generator component therein, the ion generator being arranged to ionize air passing through the first tray;
• a second tray located downstream of the first tray that includes an electrostatic filter component, whereby the efficiency of the electrostatic filter is enhanced by the ionization present in air entering the second tray from the first tray, and wherein air passing out of the second tray includes a concentration of reactive species;
• and
• a third tray located downstream of the second tray that includes a catalyst component arranged to significantly reduce the concentration level of reactive species in air passing through the third tray.