How It Works

Surface Disinfection

UVGI technology has been used for surface or area disinfection for many years. Direct UVGI exposure can sterilize any surface given the right amount of time. Current technology is used for prevention of potential microbiological hazards as well as remediation of existing conditions. The types of surface disinfection systems in use today include microbiological growth control as well as surface and area disinfection.

Microbiological growth typically consists of bacteria, fungi, or molds. HVAC systems are the perfect breeding ground for microbiological growth due to the coils function of removing heat from the air and producing condensate in the process. The condensate forms on the coil surfaces and collects in the drain pan. Over time a "bio-slime" film develops which consists mostly of mold growth on the coils and bacterial growth in the drain pan. With the HVAC system in the run mode, a portion of the accumulated mold and bacterial contamination is introduced to the air stream and ultimately to the occupants of the building.

When a cooling coil is exposed to a properly designed UVGI system, the germicidal effect of UVC energy on the microorganisms combined with the washing effect of the condensate clean the cooling coil of organic matter and restore healthy and efficient HVAC operations.

HVAC coil irradiation is a popular but specialized application of UVGI for disinfection. In fact, there are many situations in healthcare, institutional, industrial and commercial use where surface or area disinfection is necessary. Two areas of growing awareness and use are food processing and room surface disinfection.

Food borne spread of infection from microorganisms such as Salmonella typhimurium have recently grabbed the headline news. Several states are in process of enacting legislation designed to step up prevention and reporting of potential infectious hazards associated with processing and packaging foods. UVGI technology has gained popularity as a technique to effectively disinfect food processing equipment as part of ongoing cleaning and maintenance, as well as disinfect containers such as plastic bottles prior to filling with contents.

Room Disinfection

Room disinfection is another growing area for UVGI technology. UV systems have been developed to effectively destroy microorganisms such as mold, viruses and bacteria and to do so relatively quickly.

For example, a typical hospital patient room requires thorough manual cleaning before the next occupant is admitted. The turn around time needs to be minimal but cleaning must also be effective. UVGI units such as the V-360+ Room Sanitizer can disinfect a typical patient room in minutes.

Other uses for room disinfection equipment include classrooms, waiting rooms, locker rooms, shelters and mold remediation to name a few.