SmartGuard UV

SmartGuard UV

Headquarters: San Jose, CA

Established: 2014Public: NOWebsite:

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Quick Overview:

SmartGuard UV combines Fetch Robotics’ autonomous mobile robot and PURO Lighting’s broad-spectrum ultraviolet lights, powered by Violet Defense, to bring you a powerful disinfection solution. This is a dynamic and real-time UV disinfecting treatment, optimized to your environment using IR sensing technology.

The new device is purpose-built to autonomously disinfect high-traffic areas such as warehouse facilities, retail stores, offices, and hospital rooms. Solutions provider, Piedmont National has engineered the solution to deliver unparalleled performance in an automation disinfection solution.



  • Medical Disinfection
  • Office Disinfection
  • Healthcare


SmartGuard UV’s disinfection power leverages PURO Lighting’s pulsed XENON UV light fixtures, powered by Violet Defense. Unlike the low-pressure mercury UV light bulbs in use by the majority of the other UVGI solutions on the market, pulsed XENON delivers broad-spectrum UV disinfection. This is lab tested and eliminates up to 99.9% of viruses and bacteria with UV-C, UV-B, and UV-A wavelengths.

The system requires as little as 90 seconds to disinfect a 10-foot workstation and as little as six minutes to disinfect priority areas of a personal office. The pulsed Xenon UV lamp technology used in SmartGuard UV AMRs has been tested by independent accredited third-party testing labs, and is registered with the EPA.

SmartGuard UV robot in an office setting

SmartGuard UV Robot in an office (image courtesy of SmartGuard UV)

SmartGuard UV can also be configured with either two or four PURO light fixtures. By doubling the light fixtures, the system can reduce disinfection cycle time, as one light set can operate while the other light set is cooling down. XENON light operates in short bursts, similar to a camera flash, rather than in long “on cycles” as do the low-pressure mercury bulbs. The XENON flashes are higher energy, which also has the added benefit of enhanced reflection characteristics, enabling the light to bounce off walls and windows to reduce shadow effects.

SmartGuard has cameras and sensors in the payload to look for humans in the room before starting a disinfection cycle. The system can also shutdown a disinfection cycle if a human enters the workspace. UV light is hazardous to humans, so this safety feature is critical. The cameras can also snap an image to record the state of any room where an error occurs or when the cycle is interrupted. This enables the facilities team to quickly troubleshoot any situation.

SmartGuard UV Robot in a warehouse

SmartGuard UV Robot in a warehouse (image courtesy of SmartGuard UV)

The solution is able to auto-calculate exposure waypoints within a room to optimize the cleaning cycle and ensure compliance for the 3-log (99.9%) kill percentage on all surfaces in the range of the mobile solution.

Piedmont National believes that they can disinfect a 35K-40K square foot supermarket in an 8 hour night, hitting all of the high touch areas. This includes the entire perimeter, all cash registers, all of the food produce islands, freezer doors, alcohol, and beverage refrigerators.

The science of XENON bulbs is well understood. The light engine has a limited life, but the system counts every burst of light, enabling the solution to determine when it’s time for a light engine replacement and ensuring that every disinfection cycle is effective.

SmartGuard UV

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