Both air purifiers and ionizers are made to eliminate various contaminants from your house. The filtration air purifier simply uses a different air-cleaning technology than the one used by ionizer. Let’s see the details for a better understanding.
- How does a filtration air purifier work?
In the case of mechanical filtration purifiers, the air is passed through a filter material which is going to trap allergens and pollutants (smoke, animal dander, dust, pollen). The HEPA filters are able to remove no less than 99.97% of particles larger than 3 microns. When a filter isn’t true HEPA, it may still trap pet dander and dust, allowing smaller particles (pollen and spores) get through. There are air purifiers that also use an activated carbon filter which is removing some of the odors and gaseous pollutants.
- Are ionizers different in any way?
Ionizers are going to release negatively charged ions into the air and they’re going to share the charge to pollutant particles. Soon enough the particles are going to stick to each other/to various objects in the room, settling out of the air.
Ionizers are efficient for removing small particles (bacteria is one good example) from the air, but they’re not as effective as mechanical filters when it comes to trapping larger particles (dust, dander). This is why ionizers aren’t the best option for anyone struggling with allergies or asthma.
- What are their limitations?
Air purifiers are good for eliminating air borne contaminants and the models based on mechanical filter/electrostatic precipitators are going to purify the air that passes through the unit. Some of the allergens and pollutants are going to settle out of the air and onto the surfaces in the house, thus avoiding the purifier and remaining in the room.
In addition, ionizers and electrostatic purifiers produce ozone which irritates the lungs and aggravates the symptoms in asthma and other respiratory conditions.