How strongly 3 sources agree — expert labs and real owners, with community voices weighted heavier. Not one reviewer’s opinion; the pattern across all of them.
- Monitors differential pressure to show exact filter lifespan remaining in app
- Pairs with Nest, Ecobee, Sensi, and Honeywell thermostats for auto air purification mode
- Uses 3M MERV 13 filters — strong filtration without guessing
- Expensive upfront ($199 for frame, $249 for bundle)
- Filter refills cost $22 each — slightly more than buying 3M filters separately
- Not all vent sizes are available; must check compatibility before ordering
“I vastly prefer seeing my filter's remaining lifespan in the app rather than opening up the grille, checking how dirty it is, shrugging, and running to Home Depot.”WIRED
What owners love
- Monitors differential pressure to show exact filter lifespan remaining in app
- Pairs with Nest, Ecobee, Sensi, and Honeywell thermostats for auto air purification mode
- Uses 3M MERV 13 filters — strong filtration without guessing
- Detects early signs of coil freezing before it causes damage
The recurring gripe
- Expensive upfront ($199 for frame, $249 for bundle)
- Filter refills cost $22 each — slightly more than buying 3M filters separately
- Not all vent sizes are available; must check compatibility before ordering
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