UV VS Ozone Air Purifiers: Which is Better?
What Is UV air purifiers? How Does UV-C Light Work?
UV air purifiers use mainly UV-C light technology to purify air instead of relying on HEPA/ carbon filtration. It is an excellent choice for homeowners as a standalone or whole-house purification system. UV air purifiers emit short wavelength UV-C light to help control indoor air quality as it flows through your home’s ducts, killing mold, gaseous pollutants (including ozone), and other harmful particles through ultraviolet radiation exposure.
There are a lot of benefits to UV air purifiers. It effectively kills bacteria, viruses, and other harmful particulate matter and prevents them from growing and spreading. The decade-old UV technology is also safe for home use as approved by EPA and FDA. Besides producing an insignificant ozone level under 0.10 ppm, UV air purifiers do not emit harmful chemical byproducts, making them a better choice for those with respiratory problems.
Although UV-C light systems may not be a direct replacement for more intensive air purification systems using mechanical HEPA filters, they can provide a solid level of protection against most hazardous airborne particles. Most modern air-cleaning appliances will pair UV technology with mechanical filtration for the best of both worlds. Just remember to replace the UV bulb accordingly when the light intensity drops.
What Is Ozone Air Purifiers? How Does It Work?
Ozone generators/ Ozonator were once a popular air purifying method for controlling airborne household particles and odors. These systems emit ozone gas into the air, breaking down and merging with other oxygen particles. Unfortunately, ozone air purification has yet to be proven to be an effective method for improving poor air quality. It is because ozone concentrations considered safe for people are too low to purify the air effectively. Many studies conducted by health agencies, including FDA and EPA, have rebutted Ozone generator effectiveness as an oxidizing agent.
The Dangers of Ozone Air Purifiers
The notorious ozone gas was one of the primary culprits responsible for poor air quality in the home. It can pose a significant threat to your health, especially in confined spaces. Depending on an individual’s susceptibility to ozone, symptoms can range from mild coughing, dizziness, and nausea to more severe wheezing, shortness of breath, headache, and chest pain. Chronic exposure to high levels of ozone can lead to serious consequences like respiratory diseases, reduced lung capacity, and increased risk of an asthma attack.
If you’re using an air purifier to try and combat poor indoor air quality, it’s crucial that you pay attention to its ozone output. If you discover that your air cleaner is producing high levels of ozone, stop using it immediately and replace it with a CARB-approved, ozone-free alternative. Your health and well-being depend on it.
Which One: Ozone VS UV Air Purifiers
Ultimately it all boils down between UV and ozone air purifiers. Here are several key factors to consider:
- Safety – UV air purifiers are the clear winner when it comes to safety, as they do not emit harmful byproducts. Ozone generators emit harmful ozone and are not recommended by EPA, CARB, and FDA.
- Effectiveness – Both UV and ozone air purifiers are effective at removing pollutants from the air. However, UV air purifiers are very effective at eliminating mold germs, bacteria, viruses, and other allergens in the air. Ozone generators will worsen air quality by causing chemical reactions with other toxic pollutants.
- Maintenance – Most UV air purifiers are easier to maintain, as they do not have additional filters or components to clean. Ozonators require constant upkeeping and supervision as you will need to air out the high ozone concentration in the room.
- Cost – UV air purifiers are cheaper than full-sized ozone air purifiers and are more efficient to operate.
Out of the 4 factors, UV air purifier comes out on top and is clearly the better option over the ozone generator. There’s absolutely no debate on this. Avoiding ozone air appliances is the key to sustaining good health and well-being.
The Alternative Option
While here at airfuji, we are a big fan of UVGI, there are many air cleaning technologies available that don't produce ozone e.g. ionizer or mechanical filtration with medical-grade HEPA/ carbon filters. So if you're looking to improve indoor air quality yet have sensitive lungs, opt for an ozone-free air cleaner. You will enjoy all the health benefits of an air purifier without taking in any hazardous ozone.
After comparing the air cleaning mechanism, effectiveness, and health implications, UV air purifiers are undisputedly safer and more effective in eradicating airborne pathogens. While ozone air purifiers may or may not have some benefits, but for certain they carry substantial health risks, especially for those with respiratory problems like asthma. So, if you want to ensure that the air quality in your home is clean and healthy, choose the best UV air purifier.