Placing a smartphone into a Moshi Deep Purple UV sanitizer
Placing a smartphone into a Moshi Deep Purple UV sanitizer

5 things to look for when buying a UV sanitizer

By Trent

With personal UV sanitizers becoming more popular, the choices available for consumers are also increasing, leaving many people confused about this new technology and how to choose the right device for them. We've identified some of the most important factors which you should consider when purchasing a UV sanitizer to ensure you're getting the best and safest cleaning available.

Not all wands are magic

The key to UV light's effectiveness is that it physically damages organic cells; cells which are also found in human tissue. Therefore, if you can see the UV light, chances are it's either capable of harming you or (more likely) not powerful enough to be effective in destroying organisms such as bacteria and viruses. Steer clear of those UV wands which promise to clean by simply waving them over surfaces or objects.

"The key to UV light's effectiveness is that it physically damages organic cells; cells which are also found in human tissue."

Sanitization takes time

UV light works by disrupting the DNA of organisms and eliminating their ability to reproduce. This process is not instantaneous and requires the organisms to be exposed to the UV rays for a period of time to be effective. Look for a UV sanitizer which has a cleaning cycle of at least 3 minutes (Moshi's Deep Purple uses 4 minutes) to make sure you're getting a thorough, effective clean.

Animation of particles being eliminated by UV lightUV light is highly effective at eliminating microorganisms, but the effect is not instantaneous.

UV lamps are short-lived

UV for sanitization has traditionally come from UV lamps which work much like a regular lightbulb. Just like a light bulb, UV bulbs can burn out relatively quickly and deteriorate exponentially over time. UV lamps begin to lose their power after only a few months of use, before totally failing within one year. A better option is newer UV LED lights which have a longer lifespan and don't deteriorate over time (Moshi's Deep Purple uses UV LED lights which can endure more than 10 years of daily usage).

Total cleaning means 360°

UV light can only sanitize surfaces which it can physically contact. With many UV sanitizers, the fact that the items to be cleaned need to rest on the inner surface of the device means there will always be at least one area which the UV light cannot reach and therefore sanitize. In most cases, you'll need to flip the items over between cycles to get a full clean. One solution is Deep Purple's unique LumiClear™ platform allows UV light to pass through even to the underside of the device(s) being cleaned, ensuring a full 360° clean with one cycle.

Show some proof

If UV light is invisible to the human eye and cleaning is carried out inside a closed compartment, how can you be sure that the UV rays were effective, or that there was any UV emitted at all? In most cases you'll just have to take the manufacturer's word that they've cleaned effectively. Moshi has been able to solve this problem using an internal UV effectiveness indicator containing UV-reactive paint which changes color when exposed to UV rays, confirming that the interior has been exposed to a sufficient dose of UV light for sanitization.

Moshi's new Deep Purple™ foldable UV sanitizer is the world's first foldable, portable UV sanitizer and can clean a full 360° in just four minutes. Learn more about Deep Purple™ at

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