Air purifier vs. air ionizer – I'm a home tech editor who's spent 100+ hours testing air purifiers, this is the purification tech that's best for your home

View from inside a home through paneled windows and wooden doors, with brown leather sofa and gray armchair pictured in foreground. Through the window is another building with a green-blue exterior.

Cleaner indoor air, whether from an air purifier or an air ionizer, is fast becoming a household essential. From allergens and pollution to smoke and VOCs, there’s growing awareness about what’s floating around in our homes – and how to tackle it.

Both purifiers and ionizers sound similar, but experts warn that the differences between them are important when deciding to invest in your health.