Product reviews

HEPA Air Purifiers

Portable HEPA air purifiers for bedrooms, living rooms, and open-plan spaces — the core of clean indoor air. We compare them on the number that actually matters (CADR versus room size), filtration quality, real filter cost over time, and how loud they are on the setting you'll actually use.

Air Quality Monitors

The instruments that tell you whether your air is actually clean — measuring PM2.5, VOCs, CO2, and humidity so you know when to run a purifier, open a window, or track down a source. A monitor turns 'the air feels stuffy' into a number you can act on.

Replacement Filters

The filters that keep a purifier actually purifying. We cover genuine and compatible replacement filters, what a year of filters really costs per model, and when a third-party filter is a smart saving versus a false economy.