Negative ionizers are a popular air purification system that can help reduce odors and make the air appear fresher. However, it is important to be aware of the potential risks associated with using an ionizer in an enclosed space when someone is present. The process of charging the air with negative ions produces ozone as a by-product, and ozone is known to be harmful to health. Therefore, it is recommended to open a window or operate the ionizer when no one is home, and turn it off when someone is in the room with it.
As more information about the dangers of air ionizers becomes available, consumers are becoming increasingly aware of the potential risks associated with these systems. This knowledge can help them make informed decisions before purchasing an air purifier.