Ionic technology Ionic air purifiers come in three different forms. Find out which is right for you. Electronic air purifiers, air purifiers as ionic, mostly used for three different air purification technology. These types of air purifiers try to charge particles and then deposit them on metal plates or on the floor. Ionic air purifiers can be very effective when used in conjunction with other air purification technologies . Here's a rundown of the three types of ionic air purifiers : 1. Electrostatic precipitator This type of ionic air purifier works by charging particles with a negative charge as they enter the purifier. Positively charged metal plates are also present in the device. The newly charged particles are then "attracted" to the oppositely charged plates, where they are trapped. Metal plates need to be cleaned frequently to remove particles. 2. Negative ionizer Ionic air purifiers using this technology emit negative ions that seek out and “grind” positively charged particles such as dust, smoke and fumes. The particles, once charged, then stick to furniture and floors. They must be removed by vacuuming or they are again introduced into the air by the movement. 3. Media-Charged Filter This type of ionic air purifier uses a charged filter that collects particles while being opposite to the charged ionized particles. He looks like a HEPA-filter, but will start to lose their effectiveness more quickly and need to be changed more often. Be sure to keep in mind that ionic air purifiers will produce ozone, which usually has a sweet, unpleasant odor. Of these, the electrostatic precipitator and the medium- charged filter will produce the lowest ozone levels . Recommendations If you are considering buying an ionic air purifier, we recommend that you buy one that uses either an electrostatic precipitator or a filter with a charge of the environment. Negative Ionizer will not be as effective because it just causes particles to stick to everything in your room. In the end, if they do not "pick up", they will be re-circulated. In general, ionic air cleaner effective in removing all size particles from air, neutralization of viruses, bacteria and smoke and fumes circulating throughout the room.