ROS cause oxidative stress, which damages cellular proliferation, metabolism, and health, and can be involved in the development of several cardiovascular (e.g., atherosclerosis), respiratory (e.g., chronic obstructive pulmonary disease, asthma), and neurodegenerative disorders (e.g., Parkinsons disease, multiple sclerosis) as well as diabetes, rheumatoid arthritis, and some types of cancers (e.g., lung, colorectal) (Domej et al., 2014
This is often caused by poor airflow or dirty parts
The manufacturers claim ionizers help with particles, but a good HEPA filter does the job better without any risk
There is a smoking household link, and it is shocking to owners who were unaware of the risks, he says