On: Build an Ioniser in Under $10

[eeZah7Ux]

You can buy a ionizer for less than $10 on aliexpress and it might be less electrically dangerous.

However - DON'T DO IT. Many ionizers generate ozone which is unhealthy.

Also if the goal was merely to combat dust settling on the floor (rather that health), it will only make the problem worse.

[Tempest1981 → eeZah7Ux]

During crop-burning season in India, when the air is hazardous, would an ionizer + ozone be a net positive?

Crop burn pics: https://www.theguardian.com/world/2019/nov/08/indian-farmers...

[pbhjpbhj → Tempest1981]

Interesting, we banned it in the early 90s in the UK (I used to love watching it).

https://www.eurekalert.org/pub_releases/2019-08/imaw-atb0807... suggests there are better alternatives that will yield better returns for the farmers; but I gather some UK farmers want to return to burning as it - in their eyes - reduces weeds and provides ash for tilling in to the soil. It's not a simply equation though, eg https://www.researchgate.net/publication/230319729_The_effec....

[eeZah7Ux → Tempest1981]

No: ozone only makes things worse. Plus, a lot of smoke from burning plants has large particles that can be filtered much better with hepa filters