Ionizers are devices that generate negative ions, which are believed to improve air quality.
Unfortunately, they also produce ozone, a toxic gas that can cause serious health problems. Ozone is a powerful lung irritant that can aggravate allergies and asthma, and even lead to death in some cases. Inhaling ozone can result in throat irritation, chest pain, and shortness of breath, as well as an increased risk of respiratory infections.
Although negative ions occur naturally in places like waterfalls and after rain, ionic air filters are not as harmless. They are not particularly effective at removing other air contaminants, and the health effects of air ionizers are largely unknown. A few recent studies have raised concerns about the potential risks of using these devices. The market for air purifiers is booming, but some air purification technologies marketed to combat COVID-19 may be ineffective and have unwanted health consequences. Air filters that remove small particles, such as HEPA filters, are effective in removing allergens from the air without causing ozone problems. It's important to be aware of the potential risks associated with ionizers before using them in your home or office.
If you're looking for an effective way to improve air quality, it's best to stick with proven methods such as HEPA filters.