초록 ▼

A self contained air purification system includes an upright enclosed housing defining a germicidal chamber. A primary filter having a normally upstanding longitudinal axis has outer and inner peripheral surfaces, an interior plenum, and is supported on a base member. The housing has air inlets prox

A self contained air purification system includes an upright enclosed housing defining a germicidal chamber. A primary filter having a normally upstanding longitudinal axis has outer and inner peripheral surfaces, an interior plenum, and is supported on a base member. The housing has air inlets proximate the filter and air exhaust louvers in an upper member. Ultraviolet germicidal irradiation lamps are disposed in the germicidal chamber, and a resiliently mounted fan overlies the primary filter for drawing unclean air from the environment into and through the air inlets, through the primary filter, through the plenum and then into the germicidal chamber in a vortex-shaped whirling mass air stream flowing in a protracted course around and past the irradiation lamps for maximized exposure to the lamps, a purified air stream being discharged, after a final filtration, through the air exhaust louvers, then is returned to the environment. The primary filter includes an outermost particulate pre-filter for removal of particles of about 10 micron size and larger, an intermediate filter for removal of oxidizing gaseous pollutants, and an innermost filter being a HEPA filter for removal of about 99.6% of all particles of 0.3 micron size or larger. The irradiation lamps are aligned generally transverse to the air stream as it flows through the germicidal chamber and have sufficient intensity to destroy more than about 90% of airborne pathogenic particles which have not been entrained by the primary filter.

대표청구항 ▼

[ What is claimed is:] [1.] A self contained air movement system for at least one of air purification and infection control comprising:an elongated upright enclosed housing including a base member, side walls, and an upper member through which an air stream may be caused to flow sequentially, said b

[ What is claimed is:] [1.] A self contained air movement system for at least one of air purification and infection control comprising:an elongated upright enclosed housing including a base member, side walls, and an upper member through which an air stream may be caused to flow sequentially, said base member being remote from said upper member, said housing defining a germicidal chamber therein;primary filter means having an outer peripheral surface, an inner peripheral surface, and defining an interior plenum, said inner peripheral surface being spaced from said outer peripheral surface, said primary filter means being mounted proximate said base member;said housing having air inlet means proximate said primary filter means and having air exhaust means in said upper member;ultraviolet germicidal irradiation means disposed in the germicidal chamber; andfan means overlying said primary filter means for drawing unclean air from the environment into and through the air inlet means, through said primary filter means, through the plenum and then into the germicidal chamber in a vortex-shaped whirling mass air stream flowing in a protracted course around and past said irradiation means for maximized exposure to said irradiation means whereby a purified air stream is discharged through the air exhaust means in said upper member for return to the environment.