Instructables

Ozone generator

I noticed there is no usuable Intructable that I could find for a homemade Ozone generator.
Ozone can be used for many things - if used correctly.
Commercial Air - Water Pruifiers use it, you can get rid of harmful pesticide and chemical residue while cleaning your salad or "clean" the air after a big party with a lot of smokers.
Since the basic design and work priciple is more than easy I was wondering if there is a need for an Instructable?
But with Ozone not only being of concern for the enviroment in terms of smog but also being a health risk in higher concentrations I am not so sure if it is a good idea.
After all we don't want to cause any harm with our projects...

-max-1 month ago

I can produce it using high voltage arcs. Tesla coils and large Van de Graaff generators produce smell-able quantities of it. A slayer/SEC exciter circuit will also produce small quantities.

Downunder35m (author)  -max-1 month ago

I now have glass-tube-generator capable of filling a room with enough Ozone in 10 minutes that you evacuate LOL
But I decided not to post an Instructable on the topic as IMHO the risks of Ozone outway the uses if someone if not careful.

Buying a little air cleaner or ozone generator seems to be the better option and leaves me out of harms way in terms of problems caused by my design.

Qcks2 months ago

Being a chemist by trade, I tend to like having more chemical instructables around.

Ozone is pretty useful. I like it better then bleach, but i prefer hydrogen peroxide overall.
My votes for ya to put up an instructable. I don't have a huge burning need for one right this moment, but that's not entirely what this website is about.

Downunder35m (author)  Qcks2 months ago

I too like the good uses of ozone especially in terms of cleaning dirty socks and removing bad odours from the air.

But most modern countries now have strict levels for ozone in terms of being a pollutant and harmful in higher concentrations.

I have nothing to actually measure the ozone output of the generator types I tested but I know some have been so powerful that I had to shut them off after less than a minute as the stick of a thunderstorm was itching my nose.
The least effective was a carbon brush, which I'm sure could run 24/7 without anyone noticing ozone in the air - I had to put it in a jar and open the lid after 20 minutes to smell a tiny bit of ozone.
My most powerful unit so far was made from aluminium flyscreen in a glass tube (corona discharge) and with a fan attached it only took about a minute until I had to evacuate the room and open the windows.
My concerns are that a lack of care or knowledge will cause some users to produce far too much ozone than what would be considered a save level.
I really don't want to publish something and later on read a user has his lungs ruined after he fell asleep with the generator on or something similar.
If a generator is any good it can also be very harmful.
Not sure about the legal side but I would have to think about some sort of disclaimer so I can be sure people use it the right way only and accept the risks and responsibilities.

mrandle2 months ago
I worked at a pool and we had a hybrid chlorine /ozone system. I'm not 100% sure how it worked (or if it did, because we scrapped the ozone part after a few years). I do know we had massive tanks to store the ozone and we had some sort of corona discharge system. I'm assuming it used high voltage to make the ozone in house. You might be able to find the information you need from a pool cleaning website though from my knowledge an ozone system is rare in pools.
Kiteman2 months ago

Ozone at high altitudes is beneficial, protecting the planet from solar UV.

However, ozone at low altitudes is harmful to living things, particularly the human respiratory system. When office workers share space with a photocopier or laser printer, there are regulations about ventilation to prevent exposure to the ozone they generate.

"When inhaled, ozone can damage the lungs. Relatively low amounts of ozone can cause chest pain, coughing, shortness of breath and, throat irritation. It may also worsen chronic respiratory diseases such as asthma as well as compromise the ability of the body to fight respiratory infections."

http://www.epa.gov/iaq/pubs/ozonegen.html