Process for forming powder-free medical gloves

Publication Date

Patent Number

US5284607A

Abstract

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.

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