Because ozone is a very powerful oxidizing agent, it tends to be very reactive. That’s why it’s important to understand that not all materials are appropriate for use with ozone. Because of the chemical properties of ozone we can deduce that certain materials will be better than others. We will analyze them in this article.

Since ozone has the tendency to oxidize or corrode most metals and plastics, it is very important to know what materials are coming into contact with it. There are varying degrees of compatibility, and these are usually measured on a scale from A to D. A is most compatible and less likely to be affected by ozone, and D is least compatible and most affected by ozone.

If you own an ozone generator or any accessory that has materials listed in the C or D category, it might be best to consider replacements. Cheap ozone generators with subpar components may save money initially, but after replacing bad parts or the entire unit, the cost savings disappear. Because non-compatible materials can get sticky, discolored or develop cracks, it’s best to get it right the first time.

Many people are worried about plastics and other materials breaking down and contaminating the ozone stream, and that contaminates could potentially be administered inside the body with the ozone. So let’s take a look at what you need to look for when you’re buying your equipment in order to ensure the best possible output.

Some B-rated materials like PVC are safe to use with ozone, but need to be replaced more often than A-rated ones. Materials such as insufflation bags, full body ozone bags and limb bags are typically medical-grade PVC and hold up well, but should be replaced from time to time.

This doesn’t mean A-rated materials never need to be replaced. Silicone, for example, can start to turn more yellow in color and become stiffer after several months of moderate use. A good rule of thumb is to replace it after six months for heavy use or after a year for moderate use.

A-rated materials are obviously the best for use in ozone equipment and accessories. These include Teflon, PTFE, Kynar, 316 stainless steel, silicone, aluminum-oxide ceramic, and glass.

These are typically going to be the most commonly used materials. It’s important to know what your equipment is made from, so if you’re not sure, ask the manufacturer. The purpose of this article is to empower you with the right information, so that you can make an informed decision.

Next, you can see how various materials rank for ozone compatibility.

Ratings — Chemical Effect
A – Excellent – No effect
B – Good – Minor Effect, slight corrosion or discoloration.
C – Fair – Moderate Effect, not recommended for continuous use. Softening, loss of strength, swelling may occur.
D – Severe Effect – Not recommended for ANY use with ozone.
N/A – Information Not Available.

Note: These materials were tested at ozone levels exceeding 1,000 PPM.

Sources:

• https://ozonesolutions.com/blog/ozone-compatible-materials/
• https://www.absoluteozone.com/ozone-resistant-materials.html