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At the start of the CoViD pandemic I installed a UV lamp(turned on using a current sensor on the blower fan power wires) in the return air manifold on my furnace. My family still ended up all getting CoViD once one of us got it. But I keep it there because... why not? I'm sure it helps reduce the viral load in the air a bit.

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I remember researching if air purifiers helped with viral load. From what I remember viruses themselves are too thin but depending on the humidity, they might get stuck in water microscopic droplets and those could be blocked. On the other hand I think the problem with viruses is that they travel more when the air is drier.

I can't wait for a dynomight article about this :D

If it breaks, and you buy a new one, you're wasting money. Keeping the ewaste load down will be magnitudes more beneficial than keeping the viral load down.

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