If you’ve been looking for an air purifier lately, you may have noticed several that include ionizers. Though they’re beginning to appear practically everywhere, ionizers are common features found in air purifiers, fans and air circulators, heaters, and swamp coolers. But what, exactly, is an ionizer—and why should you invest in a product with one?
In short, ionizers emit ions—charged particles—to help an air purifier’s filters trap contaminants in your indoor environment. Many of our air purifiers, such as the Honeywell HFD-120-Q Tower air purifier, now feature ionizers to capture particles that otherwise would be too small to filter out. This is extremely helpful if you have allergies, asthma, or chemical sensitivities, as ionic air purifiers more effectively remove pollutants ranging from pollen, mold, dust, and pet dander to viruses, smoke, odors, and chemical toxins.
But in addition to boosting air quality, ionic air purifiers also reduce static electricity, improve your mood, and help ward off fatigue. So how can such a simple mechanism have so many positive effects?