We breathe in large amounts of air pollutants these days. It’s very difficult to control the air we breathe outside, but we do have some control over what air we breathe in our own homes or office spaces.
A concern with many air purifiers is the production of ozone, a harmful gas in certain quantities. Some older model air purifiers generated ozone as the primary mechanism of air purification. Let’s look at how the newer Reme Halo compares in this regard.
Reme Halos are not ozone generators. They are ionizers, purifying the air through the production of ions. However, small amounts of ozone are produced as a byproduct of the mechanism used to generate ions. The amount of ozone produced is unlikely to be problematic.
Reme Halos Are Not Ozone Generators
Ozone generators are a separate type of air purifier to the Reme Halo, which is an ionizer. Ozone generators are designed with the primary function of producing ozone and releasing it into the air.
Ozone has a “fresh” or “clean” smell, which gives many people the sense that the air is cleaner. It also has the ability to oxidize and thereby neutralize certain air pollutants and smells.
Reme Halo Generates Ozone
The Reme Halo is an air purifier that can be installed within residential and commercial air vents. It is made up of a UV light source encased in a metallic cover (which acts as a catalyst). The moisture in the air reacts with the UV light on the metallic surface and produces ionized hydrogen peroxide.
These ionized molecules are pumped through the air vents to every room in a home or within the office. The ions are electromagnetically drawn to charged air pollutants, neutralizing them. They also destroy single-celled pollutants by removing the hydrogen atoms from the cell wall, causing fatal destabilization.
The ions also cause some pollutants to clump together, making them easier to remove from the air with filters. They are also heavier and more likely to settle onto surfaces where they can be removed with other cleaning methods, such as vacuuming or wiping with a wet cloth.

While Reme Halos are not ozone generators, they do generate ozone as a byproduct. Some of the UV light produced will cause oxygen molecules to split into individual oxygen atoms, which are then available to bind with other oxygen molecules to produce ozone.
The amount of ozone produced, however, is very small and below the FDA guidelines as you will see in the next section.
Production Is Below Dangerous Levels
Typically, the Reme Halo produces very small amounts of ozone. It can produce as little as 0.04 ppm (parts per million).
According to The U.S Food and Drug Administration Section 801.415, ozone-producing devices are not to exceed a limit of 0.05 ppm. Thus, the Reme Halo is well below FDA requirement.
According to The National Institute for Occupational Safety and Health (NIOSH), studies done show that the level of ozone exposure to humans that can be immediately dangerous to life is 5 ppm. Thus, acute exposure to this level of ozone, or higher, will be detrimental to a person’s health.
Potential Dangers of Ozone
Even though there is minimal exposure to ozone when using the Reme Halo, you are still exposed nonetheless. There are factors that can increase the risk of developing ozone-related health effects linked to the use of an air purifier.
- Age. The elderly and children are at a higher risk.
- Individuals with asthma.
- Poorly ventilated rooms or offices.
If you are at a higher risk of developing ozone-related health effects, you may start to experience some of these symptoms.
- Immediate breathing problems (coughing, wheezing, shortness of breath).
- Irritable throat, eyes, and lungs.
- Current asthma sufferers may experience worsened asthma symptoms.
Reme Halo LED Doesn’t Generate Ozone
The Reme Halo has, however, been updated to the new and improved Reme Halo LED. This model is very similar to its predecessor, but it has many differences too. One of the main factors separating the two is that the Halo LED doesn’t produce any ozone, which makes it a low-risk option.
The Halo LED has a UV-LED lamp instead of a normal UV lamp. UV-LED lamps can be programmed to emit specific wavelengths. The most effective wavelength to destroy infectious airborne microbes is the UV-C wavelength. This wavelength does not have enough energy to split oxygen molecules and produce ozone.
The Reme Halo LED may be more expensive but it does offer peace of mind, which, to many, is well worth it.
Sources
https://www.protechac.com/blog/reme-halo-vs-reme-halo-led/
https://uvresources.com/the-ultraviolet-germicidal-irradiation-uv-c-wavelength/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4702654/
https://www.protechac.com/blog/how-does-the-reme-halo-work/
https://www.youtube.com/watch?v=QudbAl_YNw4
https://www.youtube.com/watch?v=L-t1JyUGUf4
https://www.cdc.gov/niosh/idlh/10028156.html
https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfcfr/cfrsearch.cfm?fr=801.415