SteraLight UV Sanitizer Box - Second Gen.
Puraka SteraLight Mask UVC Box

SteraLight UV Sanitizer Box - Second Gen.

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An Even Better Way to Clean Your Mask

This UV light sterilizer box is designed specifically for sanitizing your fabric or disposable mask The SteraLight uses a mirrored lid and double germicidal bulbs to bombard the contents of the generously-sized sterilization chamber with real UV light for surface disinfection. Can also be used to sanitize your phone, keys, earbuds and small electronics.

Product Features

UV-C sterilization 253.7nm | Ultraviolet Type-C light energy kills viral, bacterial, and fungal organisms. This UV Box sanitizer uses real mercury bulbs - not diodes - to create UV light that kills and neutralizes microorganisms on your mask's surface. Always wash your hands before and after handling your mask.

Large Sterilization Bay | Suitable for masks, mobile phones, smaller tablets (under 7 inches), keys, wallets, money, jewelry, watches, tv remotes, earbuds, small electronics, makeup accessories, and small toys.

9W USB charger | Charge your phone or tablet with a convenient USB port located on the front of the UV sterilizer box.

Mirrored Inner Lid | The mirror inner lid of the UV light sanitizer box helps reflect light evenly over the surface of your mask and is angled when open for you to check your mask's fit.

Essential Oil Diffusion (optional) | Diffuses essential oils from natural plant extracts to infuse a fragrance of your choice into your masks or cloth objects. Diffusion not recommended for electronics.

Sterilization is Simple

  • Put the mask (or object to be sterilized) into the sterilizer box's sanitization bay.
  • Press the "Sterilize" button. Contents will be exposed to close-proximity ultraviolet type-C light.
  • UV Light has no residual effects on objects, but direct exposure can be harmful to your eyes and skin. Only turn on the light while the lid is closed.
  • Wait as the progress bar advances to 100%. The SteraLight assistant will announce when the sterilization is complete. Allow the process to run for approximately 10 minutes. We recommend flipping your mask for a second cycle for optimal germicidal effect.
  • To infuse your mask with essential oil fragrance, place 3 to 5 drops of essential oil into diffuser holes on the floor of the chamber. Put the mask (or object to be infused) into the sterilizer bay. Close the lid and press the "Diffuse" or "Aromatherapy" button to begin the process. The SteraLight assistant will announce when Aromatherapy is complete (5-10 minutes).

About UV Sterilization

How Does Ultraviolet Light Kill Germs?

Type-C ultraviolet light kills or inactivate microorganisms by destroying nucleic acids and disrupting their DNA. Germicidal lamps like those used in the SteraLight UV Sanitizer box are used everyday in laboratories and medical facilities to sterilize workspaces and tools. Unlike UV-C wands, the SteraLight box disinfects within a closed container, keeping the light away from your eyes and skin and making it a safe choice for touchless disinfection of your mask and other everyday objects.

Not a Replacement for Washing

The SteraLight is not intended as a replacement for periodically washing your mask. Lay the mask as flat as possible before activating the SteraLight to expose as much of the surface as possible to the ultraviolet light, but always wash your hands after removing or inserting the carbon filter.

Important Note about Aromatherapy

Aromatherapy does not sterilize objects and cannot be substituted for sterilization. Puraka recommends you to sterilize first, then diffuse.


  • Inner Dimensions: 6.9in x 4.1in x 1.2in (175mm x 104mm x 30mm)
  • Outer Dimensions: 8.9in x 4.8in x 2.0in (226mm x 123mm x 50mm)
  • Input Voltage: 5V
  • Input Current: 2A
  • Power (Aromatherapy): 1W
  • Power (Sterilize): 2W
  • Output Power (charger): 9W
  • Download Product Manual

The SteraLight is classified by the FDA as a CFR 880.6600 Ultraviolet (UV) radiation chamber disinfection device (not for use in a medical setting). This type of UV disinfecting devices is a device that use UVC light to produce a germicidal effect. Although UV radiation is normally intended to augment disinfection of non-porous environmental surfaces after manual cleaning has been performed, the CDC has stated that " ultraviolet germicidal irradiation" is one of the methods that has "shown the most promise" to decontaminate filtering facepiece respirators. The special controls for this device are:

(1) Performance testing must demonstrate the chamber's ability to control the UV radiation dose during operation, disinfection performance through microbial challenge testing, evidence that the equipment intended to be processed is UV compatible, validation of the cleaning and disinfection procedures, the ability of the device to continue to perform to all specification after cleaning and disinfection and whether the device generates ozone.
(2) Appropriate software verification, validation, and hazard analysis must be performed.
(3) Appropriate analysis and/or testing must validate electrical safety, mechanical safety, and electromagnetic compatibility of the device in its intended use environment.
(4) The labeling must include UV hazard warning labels, and explanation of all displays and/or labeling on user interface, and explanation of device safety interlocks, an explanation of all disinfection cycle signals, cautions and warnings, device operating procedures, identification of the expected UV lamp operational life and instructions for procedures on replacement of the UV lamp when needed (contact Puraka for replacement), procedures to follow in case of UV lamp malfunction or failure (contact Puraka for replacement), procedures for disposing of mercury-containing UV lamps, if applicable (see manual), identification of specific equipment that is compatible with the UV radiation dose generated by the device and that can safely undergo UV radiation low-level disinfection in the chamber device, description of the required preparation of equipment for disinfection in the UV radiation chamber device, identification of the specific microbes used in successful performance testing of the device, and validated instructions for cleaning and disinfection of the device.

This device complies with the guidelines set forth by the FDA COVID-19 Emergency Use Authorizations (EUA). The SteraLight has not been formally tested by the FDA.

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