Are you considering purchasing an ozone machine to use in your home? If so, it’s important to familiarize yourself with the product safety requirements before making a purchase. In this blog post, we will discuss the product safety requirements for ozone machines and provide some tips on how to choose a safe and effective machine. Keep reading to learn more!


Whether you’re shopping for a UV ozone generator or a corona discharge ozone generator, there are several variables to consider when making your selection. Hopefully, the following text will assist the perspective buyer in gaining greater insight and understanding into what and why particular safety standards must be part of all ozone generators.

To protect internal circuitry as well as the edifice where the generator is placed, adequate fuse sizing is required in the case of a thermal runaway condition caused by an electrical fault. It’s important to ensure that the current rating and fuse size are shown on the unit’s exterior. It’s crucial to use the same-sized fuse as specified by the manufacturer in replacing a blown fuse. A blown fuse is usually an indication of something else rather than the problem itself, so keep that in mind.

Coronal discharge generators produce ozone through the use of extremely high voltage potentials (usually several thousand volts). Safety warning labels should be prominent. A safety interlock switch should also be included as standard equipment. It’s also important to take extra precautions. Every component, as well as the electrical wiring that transports the high voltage potential, should be rated for voltages of this sort. A method of determining whether or not the equipment is turned on should be provided in some manner. You can read more about different components of ozone generator here.

In the event that your electrical wiring is unsafe, you’ll need to replace it. The high voltage transformer should have at least two distinct features. One is that it should include a crowbar-type limiting mechanism to prevent the transformer from catastrophic failure if a short circuit or excessive current occurs in the secondary circuitry. It must also be capable of withstanding high levels of strain for a long period of time. Two, it should be current limited to a safe level as protection against electrical shock. Only a tiny quantity of milliamps current is permissible at extremely high voltages.


Most ozone generator chambers are air tight, but not all of them are. In either case, any internal wiring should be covered with an ozone-resistant covering. This is especially true for the high voltage and AC power cord wires, since any deterioration might create a fault.

The California Department of Public Health’s (CDPH) previously enacted provisions dictate the use of ozone generators in coin-operated water vending machines throughout the state, with additional states anticipated to follow suit.

If you plan to install the generator outside where it will be exposed to the elements, make sure it’s NEMA (National Electrical Manufacturers Association) rated for that. An extra shelter will be required if the machine is not NEMA (National Electrical Manufacturers Association) certified. You should inquire if the maker has been certified by at least one of several independent electrical testing firms that provide this service. UL (Underwriters Laboratories), CSA (Canadian Standards Association) or ETL (ETL Testing Laboratories) are three organizations that offer safety and performance testing.

Bottom Line

Ozone machines are a great way to improve the air quality in your home, and they can be especially helpful if you have allergies or asthma. However, it’s important to make sure that you purchase a machine that meets all of the safety requirements before you use it.

There are a few things to look for when choosing an ozone machine, including how much ozone the machine produces and how often it needs to be serviced. You should also make sure that the machine is certified by an independent testing organization like UL.

When using an ozone machine, it’s important to follow the manufacturer’s instructions carefully. Ozone machines can be dangerous if used incorrectly, so make sure you understand everything about using an ozone machine. You can also checkout our blog post on ozone generator safety.