Portable smoker's booth

A free-standing smoker's booth for use within an enclosed area comprising:

• a booth enclosure defined by sidewall means upstanding from base panel means, said sidewall means provided with a doorway closed by door means, said booth enclosure having a lower end closed by said base panel means and an upper end closed by cap means;
• said booth enclosure divided by barrier panel means into a user compartment and a closed space, said closed space defining at least one plenum chamber enclosing air treating means, intake air vent opening means, return air vent opening means, and means, intake air vent opening means, return air vent opening means, blower means, said blower means intermediate said intake air vent opening means and return air vent opening means, with each said opening means in communication with said compartment, said blower means adapted for directing a flow of tobacco smoke-laden air from said user compartment, through said plenum chamber intake air vent opening means and said air treating means;
• ambient air intake louver opening means in said compartment sidewall means and exhaust air vent opening means in said plenum chamber, and adjustable damper means, positioned in said plenum chamber intermediate said exhaust and return air vent opening means for controlling treated air flow thereto;
• wherein
• with said damper means adjusted to a full exhaust setting, one hundred percent of the plenum chamber treated air flow is exhausted to the ambient, through said plenum chamber exhaust air vent opening means, and an amount of ambient air, equal to the amount of plenum chamber treated air exhausted to the ambient, is drawn into said compartment through said compartment ambient air intake louver opening means;
• with said damper means adjusted to a full return setting, one hundred percent of the plenum chamber treated air flow is returned, through said return air vent means, to said compartment;
• and
• with said damper means adjusted to one of a plurality of divided treated air flow settings, a selected percentage of the plenum chamber treated air flow is exhausted to the ambient through said air vent opening means and the remaining plenum chamber air flow is returned, through said plenum chamber return air vent opening means, to said compartment, and an amount of ambient air, equal to the percentage of treated air exhausted to the ambient through said exhaust air vent opening means, is drawn into said compartment through said compartment intake louver opening means.

A method of treating tobacco smoke-laden air in a smoker's booth located in an enclosed area comprising:

• drawing a smoker's tobacco smoke-laden air flow upwardly, from a closed booth compartment, into first and second booth plenum chambers;
• separating the air flow by flowing a first compartment air current through an electrostatic air filtration unit in said first plenum chamber, and conjointly flowing a second compartment air current through an ionizing air purification unit in said second plenum chamber;
• and
• returning said first and second treated air currents downwardly from their associated first and second plenum chambers for mixing with tobacco smoke-laden air in said compartment, whereby the mixed smoke-laden air and treated air is circulated upwardly through said first and second plenum chambers.

A method of treating tobacco smoke-laden air in a smoker's booth located in an enclosed area comprising:

• drawing a tobacco smoke-laden air flow from a smoker upwardly, from a closed booth compartment, into a booth plenum chamber;
• passing the tobacco smoke-laden air flow through an electrostatic air filtration unit in said plenum chamber;
• exhausting a portion of the filtered air flow to the ambient air and returning the remaining portion of the filtered air flow to the compartment;
• drawing into the compartment an amount of make-up ambient air substantially equal to the selected amount of filtered air exhausted to the ambient from the plenum chamber;
• and
• mixing said returned filtered air and said selected make-up air in said compartment, with tobacco smoke-laden air in the compartment, whereby said mixed smoke-laden air, returned filtered air and said selected make-up air, circulated upwardly through said plenum chamber.