The UVC Basics
Most disinfectants use chemicals to inactivate bacteria and viruses on surfaces. UVC inactivates microorganisms by absorption of radiated electro magnetic energy which causes a photochemical reaction that alters the molecular components essential to cell function. The light energy penetrates the cell wall causing pyrimidine molecules such as thymine in the DNA to cross link forming a dimer. A dimer impedes the nucleic acids functions and prevents the organisms ability to continue cell metabolism, resulting in cell death. The DNA and RNA carry genetic information necessary for reproduction; therefore, damage to either of these substances can effectively sterilize the organism. (Snider et al., 1991)
Cleaning with chemical disinfectants alone is insufficient in today’s health care facilities. Chemicals do a great job at killing bacteria and viruses but they are dependent on the people that apply them and the contact surfaces they are applied to. UVC treatments are a secondary process to ensure that no areas are missed in the cleaning operation. High touch areas like electronic equipment in hospitals or laboratories are difficult to spray down with bleach. UVC energy contacts all the exposed surfaces including the hard to get places.
Intelligent Dosage Technology
UVC Cleaning Systems eliminates the human error that is inherent to timer based UVC disinfection systems and treats each room as a unique space. We use a multi faceted UVC measuring process to determine the length of a treatment for a given area. External sensors measure the energy created by each device. This accumulated measurement of the UVC flux field is one of the factors in determining dosage per treatment area. The second factor is the emitter efficiency, which is measured with internal sensors.
UVC emitters vary in output depending on emitter life cycle, available voltage, and operating temperature. It is the combination of these three variables that determine the dosage per treatment area. Our algorithm and measurement data has been proven against biological samples in certified antimicrobial laboratories.
All linked devices work together to determine the appropriate accumulated UVC dosage. This means that if there 4 linked devices in a single room, each device will accumulate UVC until all of them have reached the dose threshold.
UVC Cleaning Systems mobile devices are designed to be easy to operate, effective, and durable with Teflon encapsulated emitters for increased safety. The devices have stainless steel and impact resistant thermal plastics construction. Handles on all four sides act as crash bars and can be used to pick up and move the device in all directions. All UVC Cleaning Systems mobile devices are shipped fully assembled (device key shipped separately).
The M20 device has proven to treat Staphylococcus Aureus at 16ft (5m) in 10 minutes and reduces the bacteria by greater than log 4 (99.9967%) in a single treatment (see test report for details). Larger rooms or multiple areas can be disinfected by wirelessly linking up to 8 devices. This means that up to an 8600 sq ft (800 sq m) area can be treated with UVC in a single treatment with 8 units.
The M20 and M15 devices use 360 degree motion sensing with passive infrared (PIR) and ultrasonic technologies to create a safe operating environment. UVC energy is hazardous to skin and eyes and should not be operated when occupants are present.
Multi colored LED are used on the mobile device and the remote control to designate operating status. An audio alarm is activated at the start of every treatment. All warning labels and marking are in regional languages and English.