Clean Air Blog

All articles Air Pollution Air Purifiers Air Quality Monitors Allergy Carbon Filter Community Dehumidifier Donation Dust Filters Humidity Indoor Air Quality Infant Mould Negative Ions Noise Nursery NZ Market Office Pets PM2.5 Qingping Renovations Sleep Smoke Spring Temtop VOCs Winter

Side by side image showing a negative ion generator with a red cross next to a HEPA Air Purifier with a green tick

Clean Air Blog

Ionisers Explained | Why We Don’t Use Them (and Why Some Brands Do)

on Dec 03 2025

Ionisers are marketed as an extra layer of air cleaning, but they work by pushing particles onto surfaces rather than removing them, and some produce ozone as a byproduct. This article explains how ionisers work, why we avoid them, and why HEPA filtration is the cleaner, safer choice.

Christchurch, New Zealand

All Rights Reserved © 2026, Snap Air Ltd