42 Custom design of ozone, ultraviolet light, air scrubbing, purifying, decontaminating, disinfecting, conditioning, and germicidal machines, filters, purifiers, lamps, sanitizers, and sterilizers; design for others in the fields of ozone, ultraviolet light, purifying, decontaminating, disinfecting, conditioning, and germicidal machines, filters, purifiers, lamps, sanitizers, and sterilizers; computer services, namely, monitoring, analyzing, and reporting on the performance of ozone, ultraviolet light, air scrubbing, purifying, decontaminating, disinfecting, conditioning, and germicidal machines, filters, purifiers, lamps, and sterilizers; consulting services in the fields of ozone, ultraviolet light, air scrubbing, purifying, decontaminating, disinfecting, conditioning, and germicidal machines, filters, purifiers, lamps, sanitizers, and sterilizers