Purelight UV Sterilizing Wand

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Soime of allergy suffering friends swear by UV light cleaning tools. Awhile back ago we tested a UV emitting vacuum which used UV light to supposedly kill bacteria, virus, mold and dust mites while sucking up their carcasses, but we couldn't honestly say the vacuum or its UV light made a huge difference. But maybe that's because the worst allergen spots aren't on the rug, but actually in bed, where we spend most of our time rolling around with our own dead skin...and thus the microscopic critters that feed upon it. In this case, a UV light wand would be much handier than lifting and vacuuming the mattress...

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This Purelight UV Wand offers many of the same claims as other UV light devices: kills viruses, bacteria, mold, dust mites and bed bugs, all the while neutralizing odors. But like those other devices, we'd expect the effects to be unnoticeable or slight upon use, at least from our limited experience with UV sanitizing with commercially available products. Perhaps other allergy sufferers or users of this device or ones similar to it have a different experience to share? The one reviewer on the product page notes that the wand does take time to neutralize/sanitize:

"This product probably does what it says, but it really takes a long time to sanitize something. You have to hold the wand over the area for about 15-20 seconds. Since the wand doesn't cover that much space, it took me over 5 minutes to sterilize the top of my pillow. Would take forever to do the top of my bed or anything else of large size."

Not sure we'd want to do that every morning, but if we were serious allergy sufferers and it helped, we might think otherwise. The Purelight UV Wand is available for $279.