Method and system for air ventilation, sterilization and filtration

Abstract

A stratified displacement recirculating air ventilation system for sterilizing and filtering unpurified air within a confined space, the stratified air displacement system consisting of air circulation between one or more negative pressure air collection ducts, one or more positive pressure air return distribution ducts and one or more filtration units wherein the air circulates through the biocide chamber passing through HEPA filters with exposure to UV-C germicidal lamps.

What is claimed is: 
     
         1 . A stratified displacement recirculating air ventilation system for sterilizing and filtering unpurified air within a confined space, comprising:
 one or more air intake suction vents mounted in the upper room of an occupied zone coupled to one or more negative pressure air distribution ducts such that said unpurified air is drawn upwards into said one or more negative pressure air distribution ducts wherein said one or more negative pressure air distribution ducts delivers said unpurified air to a high intensity light UV-C sterilization and filtration unit biocide chamber via negative pressure;   one or more air dampers coupled to a fresh air mixture duct further coupled to a direct air capture ventilation duct such that an optional fresh air source outside and for the process of capturing contaminated air directly from the point of sources of said confined space is drawn into said high intensity light UV-C sterilization and filtration unit biocide chamber wherein said unpurified air is processed into purified and sterile air via said high intensity light UV-C sterilization and filtration unit biocide chamber by means of the biocide chamber's aerodynamic specification meeting the completed UVC dosage requirement to kill and or inactivate airborne pathogens; and   one or more positive pressure air return distribution ducts coupled to one or more fans such that said purified air is drawn out from said high intensity light UV-C sterilization and filtration unit biocide chamber through said one or more positive pressure air return distribution ducts and out into said confined space;   wherein said high intensity light UV-C sterilization and filtration unit biocide chamber comprises:
 a plurality of sterilization cells, a plurality of UV-C germicidal lamps, a plurality of surface impact air foil grills, and one or more HEPA filters; and 
 a plurality of modular frame components to expand and provide a longer air travel distance in Linear Flow per Minute (LFM) for UVC Germicidal Irradiation (UVCGI), the module frame components comprising a plurality of 180 degree corner sweep air vanes. 
   
     
     
         2 . The system of  claim 1 , wherein the biocide chamber processes up to 48 ft 3  of air volume during a 6 to 8 second period. 
     
     
         3 . The system of  claim 1 , wherein the biocide chamber further comprises one or more surface impact broil vent grills. 
     
     
         4 . The system of  claim 1 , wherein the modular frame components of the biocide chamber further comprises one or more airfoil light trap vents wherein a leading edge of each airfoil faces opposite wind air flow direction. 
     
     
         5 . The system of  claim 1 , further comprising a direct air capture ventilation nozzle and a fresh air mixture ventilation nozzle. 
     
     
         6 . The system of  claim 1 , comprising four sterilization cells, each of the four sterilization cells comprising a true HEPA filter and two UV-C germicidal lamps, with one of the two UV-C germicidal lamps mounted on each airflow side of the true HEPA filter. 
     
     
         7 . The system of  claim 6 , wherein each UV-C germicidal lamp is provided as a single UV-C lamp passing through all four sterilization cells. 
     
     
         8 . A method of sterilizing and filtering unpurified air within a confined space, comprising:
 drawing unpurified air through one or more air intake suction vents mounted in the upper room of an occupied zone coupled to one or more negative pressure air distribution ducts such that said unpurified air is drawn upwards into said one or more negative pressure air distribution ducts;   delivering said unpurified air to a high intensity light UV-C sterilization and filtration unit biocide chamber via negative pressure via said one or more negative pressure air distribution ducts;   optionally drawing fresh air into said high intensity light UV-C sterilization and filtration unit biocide chamber via one or more air dampers coupled to a fresh air mixture duct further coupled to a direct air capture ventilation duct;   processing said unpurified air into purified and sterile air via said high intensity light UV-C sterilization and filtration unit biocide chamber by means of the biocide chamber's aerodynamic specification meeting the completed UVC dosage requirement to kill and or inactivate airborne pathogens;   returning said purified air to said confined space via one or more positive pressure air return distribution ducts coupled to one or more fans such that said purified air is drawn out from said high intensity light UV-C sterilization and filtration unit biocide chamber through said one or more positive pressure air return distribution ducts;   wherein said high intensity light UV-C sterilization and filtration unit biocide cham ber com prises:
 a plurality of sterilization cells, a plurality of UV-C germicidal lamps, a plurality of surface impact air foil grills, and one or more HEPA filters; and 
 a plurality of modular frame components to expand and provide a longer air travel distance in Linear Flow per Minute (LFM) for UVC Germicidal Irradiation (UVCGI), the module frame components comprising a plurality of 180 degree corner sweep air vanes. 
   
     
     
         9 . The method of  claim 8 , wherein the biocide chamber processes up to 48 ft 3  of air volume during a 6 to 8 second period. 
     
     
         10 . The method of  claim 8 , wherein the biocide chamber further comprises one or more surface impact broil vent grills. 
     
     
         11 . The method of  claim 8 , wherein the modular frame components of the biocide chamber further comprises one or more airfoil light trap vents wherein a leading edge of each airfoil faces opposite wind air flow direction. 
     
     
         12 . The method of  claim 8 , wherein the fresh air mixture duct further and the direct air capture ventilation duct further comprise a direct air capture ventilation nozzle and a fresh air mixture ventilation nozzle. 
     
     
         13 . The method of  claim 8 , wherein the step of processing said unpurified air comprises passing the unpurified air through a set of four sterilization cells, each of the four sterilization cells comprising a true HEPA filter and two UV-C germicidal lamps, with one of the two UV-C germicidal lamps mounted on each side of the true HEPA filter. 
     
     
         14 . The method of  claim 13 , wherein each UV-C germicidal lamp is provided as a single UV-C lamp passing through all four sterilization cells.