Breathing and sleeping in negative ionized air for 40 years. Just high voltage potential -7 to -10kVDC and spread carbon hairs (better than metal spikes) to launch it.

Walls and floors always have positive charge conducted from the ground outside relative to the air, no sparks means ozone in too small concentrations to worry about. Dust, smoke, bacteria and viruses stick to walls not the inside of lungs and the air is clean and odorless. You can shine a very bright flashlight through it in a dark room and see absolutely no beam. Every so often you sponge off the walls with strong cleaning solution. Latex paint stains easily near the device which is a subtle way of reminding you how germy it really would have been. Use plastic over walls near the device to save yourself some color matching and painting.

Over all these years, the most annoying thing has been other people trying to sell me HEPA filter solutions with screaming fans that need accessory replacement often. They insist I'm killing myself with ozone as a fear tactic. Few people sell just ionizers or sabotage the concept by selling weak/ineffective ones... because HEPA is big money.

Ionizers use tiny energy and no recurring supplies. Just make sure your electronics are grounded well.

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0b110907 a day ago | parent | next [-]

Do you have a more detailed writeup about how you've set this up?

	▲	HocusLocus a day ago \| parent [-]
		My primary device is a 2010 Comtech (good luck finding one). It's just a voltage multiplier off of 110VAC( https://en.wikipedia.org/wiki/Voltage_multiplier ). I bought 8 $5/ea Chinese 'neg ion modules' and tied then to the back of the fan... they are parts to build into a much weaker device for cars. They will last longer (because they're resin sealed) and safer (12VDC supply) but by comparative output measurement I will need an array of 36 to match the output of the 2010 device. At $5 ea, this is doable. There are single power supply units more capable but I like the idea of 36 separate waterproof replaceable 12VDC things.

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lll-o-lll a day ago | parent | prev | next [-]

Ozone is bad for you though. How do you manage that?

Edit: Sorry, you did address that.

> no sparks means ozone in too small concentrations to worry about.

Have you actually measured?

	▲	HocusLocus a day ago \| parent [-]
		No, I just know the mechanism (UV/spark) is missing and the air has no odor of it. I know the smell of O3 because an old boss had one of those cracking sparking monsters that projected blue on the ceiling when the light was off. It blew its power supply in short order and no one suffered ill effects, but no one missed it either.

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nom a day ago | parent | prev | next [-]

Can you recommend any devices?

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hnuser123456 a day ago | parent | prev | next [-]

There's HEPA, then there's high voltage ionizers, then there's PCO purifiers. PCO seems to have some advantages over ionizers.

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pinoy420 a day ago | parent | prev [-]

Are you allergic to going outside?

I watched a grand designs episode where the parents (well, inflicted by the wife) Munchausen by proxied these allergies onto their kids. They were obsessive about having an allergy free house and spent hundreds of thousands building one with, basically a lesser version of what you explained up there.

Revisiting several years later, the children had integrated with society (amazing that they weren’t homeschooled) and lo and behold - allergy free.

The provocative host coaxed out of the parents that they believed that the house did bugger all in terms of helping their children.

I wonder how the kids are doing now without their namby mother