APPARATUS FOR FILTERING AIR

摘要

An air filtering apparatus includes a housing defining a top opening and having a front portion defining a bottom opening. A filter is positioned within the top opening and sealed to the housing so that air flowing into the housing passes through the filter. An expansion chamber is in fluid communication with the bottom opening. A motorized fan is located within the housing and is configured for drawing air through the filter, into the housing and out through the expansion chamber. The air output of the motorized fan is directed toward a bottom of the housing proximate a rear of the housing with the expansion chamber extending from the air output of the motorized fan to the front portion of the housing.

主权项

1. An air filtering apparatus, comprising:
a housing having a front side wall, a back side wall, a right side wall and a left side wall, the front, back, left and right side walls defining a top opening and the front side wall defining a bottom opening in a bottom portion thereof; at least one filter positioned within the housing and in fluid communication with the top opening and sealed along its edges to the housing; an expansion chamber in fluid communication with the bottom opening, the expansion chamber having a first portion having a first cross-sectional size and a second portion that expands from the first cross-sectional size to a second larger cross-section size proximate the bottom opening; and a motorized fan located within the housing between the at least one filter and the bottom opening configured for drawing air through the filter, into the housing and out through the expansion chamber.