Mar. 03, 2025
The best place to check for used ozone generators is in the Facebook group The Ozone Group with currently over 11,000 members.
With competitive price and timely delivery, Quanju sincerely hope to be your supplier and partner.
Members regularly post ozone equipment they want to sell. The machines are often in great shape and only lightly used.
In order to have access to the group, you need to apply and answer all three questions. Only then will you be admitted.
Another place to look for used equipment is Ebay or Craigslist where you can find great deals especially for oxygen concentrators.
Promolife and SimplyO3 regularly offer holiday specials for Thanksgiving or Christmas or other occasions. Stay up to date with specials by subscribing to their newsletters.
Additionally, you can get year round discounts by using the following codes:
Promolife offers 7% off on all ozone equipment if you use my code. Subscribe to my newsletter to receive it.
SimplyO3 deducts $50 from your order of a Stratus2.0 or Stratus3.0 machine if you use POWER.
Buying a simplified ozone generator is another way to save money. Those are machines like Promolife Mini.
Their ozone concentration is controlled through the oxygen flow, not through a dial knob. They only have an on and off switch.
This comes with a reduced number of options to set the ozone concentration.
Most ozone applications call for ozone strengths in the 20 to 50 mcg/ml range which all of the simple generators offer.
The HTU-500 is also a great solution if you are more of the DIY type.
For most of the accessories there are more affordable alternatives.
Example: gas washing bottles instead of bubblers and traps. You can buy a gas washing bottle for 1/4 of the price of the more expensive equipment. (You may have to experiment which tubing to buy to fit the outlets.)
Catheters: buying them in bulk from this place for example can push the price down to $0.85 per catheter instead of $2 to $4 at the ozone suppliers.
Another solution: sterilize and reuse catheters. Especially catheters used for vaginal insufflations can be easily rinsed out and utilized again.
Catheters which have been used for rectal insufflations, should undergo a more thorough cleaning: some people soak them overnight in 3% H2O2, rinse them out with water really well before re-applying again.
Examples:
Instead of a water bubbler, just use an empty and clean wine bottle to ozonate water. Or a water jug. Just make sure to leave the room while the water is being infused with ozone.
Use a check valve instead of a trap.
Or simply use gravity and put the container with the liquid well below the ozone generator (I would pair this with at least another method to prevent backflow.)
Or save on both trap and check valve, but make sure that you disconnect everything in the right order: first, turn off the ozone generator, then disconnect the glass ware with the liquid, and as a last step turn off the oxygen. (This is risky. If you forget the right order, it may result in oil getting into your ozone generator after which the machine is useless).
Another solution: use the direct method of doing rectal and vaginal insufflations instead of bags or syringes. Just insert the catheter while it's attached to the ozone generator.
With RI, this direct approach should be only used with very low oxygen flows of 1/16 or 1/8 LPM and you should use a timer to make sure that a certain amount of ozone gas isn't exceeded.
Promolife, SimplyO3, and Longevity all offer extensive ozone packages. Buying all the ozone equipment and accessories as a bundle is often more economical than when buying everything piece by piece.
While buying ozone set-ups through payment plans does not reduce the total amount spent, they allow you to stretch out your expenses and make it more realistic to purchase. If you don't have the whole sum ready, you can pay it off in installments.
Promolife offers this option through their PayPal Credit plan.
If you are happy with the ozone equipment you bought, you can become an affiliate and start promoting your favorite ozone company.
Promolife, SimplyO3, and Longevity all offer partner programs. Once you have singed up, you can earn between 5 and 10% on sales you have facilitated. This is how I made thousands of $ over the past few years ' without even being a prolific writer!
Or you can suggest your favorite equipment in emails to friends and other people who may inquire about it.
Affiliate programs are a great way to get back the money you have spent on your ozone equipment.
Sending emails doesn't cost anything!
Or start blogging about your ozone adventures. There are many blogging services which allow you to start your own website for free. By embedding affiliate links in your blog posts you could create a side income for yourself.
Some companies, like for example Longevity, offer price reductions if you buy more than one machine. Do you have friends who also want to buy an ozone generator? If so, get together and place the order as one person ' Longevity will give you $145 off on the EXT50 (so you'll pay $850 instead of $995 per machine).
In many European countries medical oxygen can be bought easily without a doctor's prescription.
There are several online shops which offer filled oxygen bottles plus low flow regulators.
This is true for Germany, Netherlands, and France, see here.
In Italy, many pharmacies refill oxygen bottles.
In Poland, you can buy technical or 100% pure oxygen online and have it delivered to your home.
In Germany, several companies sell pediatric regulators.
Examples of European oxygen shops:
Pre-filled medical oxygen bottles:
Medizinisher Sauerstoff
Medizintechnik24
The best solution to buying an ozone generator for Europe is to purchase it from one of the North American sellers.
As far as I know, there are no known German or EU based manufacturers who sell ozone machines to the general public.
Ozone therapy is quite popular or it's gaining in popularity among doctors in many European countries including Germany, Italy, Spain, Austria, Switzerland, and Poland, but it's unheard of for people to treat themselves at home with ozone. Most patients go to their doctor or natural health care practitioner for ozone treatments instead.
Luckily, all the recommended US and Canadian producers of ozone generators are also catering to an international crowd: all their ozone generators run on universal voltage. Check out the online shops of Promolife or SimplyO3.
And all of them offer low flow regulators which fit European and Australian tanks.
Contact us to discuss your requirements of ozone air purifier. Our experienced sales team can help you identify the options that best suit your needs.
Take note that you may have to pay customs fees when importing ozone generators. How much ' this depends on the country you're in.
The materials which are used inside the ozone path are very important. Ozone is highly corrosive and it will break down as good as every material. There are just a few exceptions, like: stainless steel, titanium, aluminum, glass, ceramic, silicone, kevlar, and a few others.
Is it important for you to know which of those materials are used in your ozone generator?
In my opinion ' no.
Just like you don't have to know all the heat resistant materials a grill is made of before you buy it.
It's enough that the manufacturer knows that. It's clear that no producer of grills will use materials which will be destroyed by heat at the first use of their product.
The same thing applies for manufacturers of ozone generators: it's clear that they will only use ozone resistant materials, otherwise the machine would break down very soon and no one would buy it.
In spite of the obvious logic, I'm aware that the thought may still appear controversial to some.
Many people have bought into the idea that the only acceptable type of ozone generator is one which has an ozone chamber made entirely out of glass (a so called dual dielectric ozone generator). And that ozone should never get in contact with metal, not even with highly ozone resistant metals like stainless steel, titanium, or aluminum.
What few are aware of is that this belief emerged solely thanks to the tireless efforts of the main manufacturer of all-glass ozone generators.
True medical grade ozone generators, so machines like Herrmann, Humares, Ozonosan, or Sedecal (Ozonette), some of which cost up to $15,000, are made of ozone chambers which allow stainless steel and other metals to get in contact with ozone. These machines have to satisfy the highest quality requirements since they're true medical devices according to European regulations. This means that the manufacturers had to prove that they do not pose a risk to human health.
This fact alone renders the argument of the all-glass purists mute.
All the ozone generators on this list are made of ozone resistant materials.
On alibaba you can find a whole selection of Chinese ozone generators which cost between $200 and $250. They claim to be medical grade, they have an output chart printed on top according with the oxygen flow, and look like some of the generators sold by US retailers. Looks legit and like a great way to save some money, right?
There is one big problem though: their ozone output charts can't be trusted.
Here is why you should be careful when buying an ozone generator on alibaba: many of those generators have a chart printed on top which distinguishes between two different oxygen sources: tank and concentrator.
The oxygen purity between an oxygen concentrator and an oxygen tank which is used for an ozone generator should differ at most by 10%. Since oxygen concentrators used for therapeutic ozone generators should put out oxygen of at least 90% purity, and oxygen tanks contain oxygen of at least 99% purity.
Consequently, the ozone output between those two oxygen sources should also vary by at most 10%.
But that's not the case with the cheap Chinese models.
There, the ozone concentration differs by up to 150% between oxygen concentrator and oxygen tank.
Testing performed by SimplyO3 revealed that those numbers are indeed not correct.
Other ozone machines sold on Alibaba have an output chart which shows one ozone concentrations for pure oxygen source and one for air as feed gas. Which shows that they were not made for therapeutical purposes. Which is fine, only that they are often advertised as medical devices.
Yet other ozone generators claim to have a design 'Made in Germany' and engineering 'Made in Italy'. Only someone not familiar with the European culture would advertise such a thing. And it shows that the sellers are willing to post no matter what outlandish claim about their machines in the hope of attracting buyers.
Which of those claims is true is for most people impossible to verify.
Some ozone experts claim that one should only use oxygen tanks for the production of ozone and never oxygen concentrators. Oxygen concentrators produce oxygen of around 90% to 97% oxygen. But what are the remaining 3% to 10%? Ozone experts say it's mostly nitrogen which then converts to harmful nitrogen oxides.
I wanted to find out if that was indeed true and contacted three different producers of oxygen concentrators. Two of them responded. They explained that:
Oxygen concentrators have zeolite filters. The main function of zeolite is to pull nitrogen from the air.
So is it possible that the maximum 5% nitrogen could cause harm when exposed to ozone?
Unlikely, here is why:
There are three potentially problematic nitrogen byproducts:
1. NOx, which stands for NO and NO2, or nitric oxide and nitrogen dioxygen.
NO plays an important physiological role in our bodies, it's a vasodilator and neurotransmitter. This is one of the reasons why people take L-arginine which produces NO.
NO and NO2 have been implicated in various health conditions. They are considered part of smog and are taxed or regulated by most Western governments.
After looking in depth into the issue, which included reading studies cited by the World Health Organization in its report on nitrogen oxides, I had to come to the conclusion that there is no evidence to support that NO or NO2 have any negative health impact on humans or animals at levels of 10,000 times of urban NOx levels. See my Facebook post on the matter.
NO and NO2 are produced 90 to 95% by trees, soils, and volcanoes. Only 5 to 10% are produced by humans. [1] [2]
There is no evidence that neither NO nor NO2 are harmful to human beings.
In spite of the facts and countless studies which prove that they are harmless or even beneficial [3] [4] [5] [6] [7] [8] [9] [10] even at multiple times of normal atmospheric levels, governments have nevertheless decided to tax and regulate them.
Together with similar approaches towards CO2 [11] and ground level ozone, all of which are naturally occurring parts of air and are overwhelmingly produced by nature, not humans, this type of government sanctioned and government promoted misinformation serves more to highlight the current Orwellian push towards totalitarianism at the hands of 'towering geniuses', and has nothing to do with the actual risk of those molecules.
2. HNO3, or nitric acid, is a highly corrosive acid that can damage even stainless steel.
Is it then possible that ozone generators which use oxygen produced from oxygen concentrators produce nitric acid?
Unlikely.
Here is Jeol Leusink's answer from the company Oxidation Technologies explaining it. His company specializes in the production of industrial ozone generators some of which run on air as feed gas (air contains 80% nitrogen):
'(') if ozone is produced from air as opposed to oxygen, and that air is not sufficiently dry, then HNO3 can be produced from the nitrogen and hydrogen found within that air.
To eliminate HNO3 production in the ozone generator remove all hydrogen in the air supply by drying the air, or use oxygen feed-gas.
The danger in HNO3 production with an ozone generator has much more to do with the longevity of the ozone generator, and parts in the gas stream prior to the water. The HNO3 production rate is very low, and will not affect the water in any measurable amount. However, HNO3 production within the ozone generator and piping will cause reliability problems very quickly, within weeks, or days of operation.'
The oxygen produced by oxygen concentrators is extremely dry. Concentrators use several air filters including zeolite filters. They extract all humidity from the air, to the point that patients who are prescribed oxygen machines for lung conditions like COPD are instructed to use humidifiers to not hurt their lungs.
Conclusion: There are no harmful nitrogen byproducts generated during the production of ozone with oxygen from oxygen concentrators.
On a personal note:
During an ozone course in Nizhny Novgorod, Russia, I witnessed the use of oxygen concentrators for any type of ozone applications. Ozone medics in Nizhny Novgorod are pioneers in the field of ozone therapy. This is where the ozonated saline IV aka 'Russian method' was developed. Oxygen concentrators are regularly used in Russia without apparently causing any problems.
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