I have been an air purifier evangelist for a while now. Functionally, they’re relatively simple devices — basically a computer fan and a HEPA filter with an on/off switch. It shouldn’t take much to make the best air purifier. Or so I thought until I met the Dreo Macro Max S Air Purifier. Dreo Air Purifiers 4.6 $219.99 Introducing the Dreo Macro Max S: a robust true HEPA air purifier designed to tackle larger rooms easily. With its advanced early detection sensor, H13 filtration system, seamless smart compatibility automated active purification. Breathe in cleaner, fresher air with the Dreo Macro Max S. Check Availability See at Dreo KnowTechie is supported by its audience, so if you buy something through our links, we may get a small share of the sale. 06/30/2023 11:52 pm GMT Airing it out Image: Roger Feely-Lussier / KnowTechie Over the past ten years or so, I’ve bought a couple of very simple air purifiers off Amazon, based entirely on price and reviews. They work well, but both lack any sort of sensor or info screen — so I’ve been basing their efficacy entirely on vibes. With the Dreo Macro Max S Air Purifier, I no longer have to wonder. It even has an app. I’m not going to bury the lede here; I’m obsessed with this thing. What’s in the box? The box is surprisingly light. The purifier itself weighs in at just under 12 lbs, so it’s relatively to pick up and move around if…Review: Dreo Macro Max S Air Purifier