Product review: Medd Max LED Ultraviolet Sanitizer Bag, UV Light Sterilization Box Disinfection / Banana Test for UVC light

 

I have a hand full of N95 masks I bought ten years ago, and I wanted to be able to sanitize and re-use them during the COVID-19 pandemic.  Med Max Satinizer box looks to be the right size for the job, and I liked that it operates closed so I would not be exposing my eyes to UV light.

How to tell if the UVC light is actually producing the light in the UVC spectrum and that it is strong enough to disinfect my masks?  Before  I purchased this sanitizer bag, I did a bit of research. I found an article in Discover Magazine, By Jeanne Erdmann, published on August 3, 2020, that describes the "banana" test and provides references to YouTube videos that demonstrate how to do this test. The tests show that UVC light changes the color of the green banana skin to brown color.  To make the color change more obvious, a portion of the banana is covered by tape, so when you peel the tape off, you can clearly see the difference for the products producing enough UVC light to disinfect. If the banana color is unchanged, the product does not generate enough UVC light to disinfect.

I performed this test on the Med Max Satinizer box, which you can see in the attached video. I performed two tests; the first test is a three-minute test because the auto-shut happens at 3 minutes.  And then, I ran the box 10 more times, giving the banana additional 30 minutes of light exposure.  In both tests, the banana color, unfortunately, remained unchanged.

Note that the human cannot see UVC lights. The LED lights in the Med Max Satinizer box are covered by purple plastic, so the light you see in the little window is purple. The purple glow you see is LED light + purple plastic, and that is a gimmick.

Sadly, since this box cannot change banana skin color, it cannot disinfect my N95 masks.


You can find it on Amazon by following this link.

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