SteraLight Diffuser & UV Sanitizer Box - 1st Gen
Diodes programmed to emit light in the UVC spectrum

SteraLight Diffuser & UV Sanitizer Box - 1st Gen

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$34.95 $24.95
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Purify Your Mask

The SteraLight infuses your mask with your choice of essential oil aroma, while disinfecting the contents of the generously-sized chamber with light set to the ultraviolet-C spectrum, the same type of light used by hospitals for surface disinfection. Useful to clean your mask, keys, phone and more.

Product Features

UV-C sterilization 253.7nm | Ultraviolet Type-C light energy (UVC) kills viral, bacterial, and fungal organisms. Five minutes of short-range exposure to UVC will disinfect your mask's surface, and doesn't require you to remove the filter. 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 front USB port.

Opaque Safety Cover | Durable, opaque plastic cover closes tightly to prevent ultraviolet light from leaving the chamber.

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 bay.
  • Press the “Coating” or "Sterilize" button. Contents will be exposed to close-proximity ultraviolet type-C light.
  • Careful... UV Light has no residual effects on objects, but direct exposure can be harmful to your eyes and skin. ONLY TURN ON LIGHT WHILE LID IS CLOSED.
  • Wait as the progress bar advances to 100%. The SteraLight assistant will announce when the sterlization is complete. Allow the process to run for approximately 5 minutes. We recommend flipping your mask for a second cycle to achieve 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 UVC 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 the SteraLight are used every day to sterilize workspaces and tools used in biology laboratories and medical facilities. Unlike portable UV-C the SteraLight 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.


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