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Where to buy
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Specs confirmed against the manufacturer. How we check →
PurpleAir
PurpleAir Flex
$249
On the higher end for compatible air quality monitors · $30 to $299 in our catalog
Before you buy
Works offline? Not confirmed yet
Good fit if you use Home Assistant.
Works with
Works with Home Assistant out of the box, no hub needed.
Home Assistant
✓ full support (native, Matter, or a built-in integration).
Specifications
Features
- Measures
- PM2.5, AQI
Connectivity & control
- Connectivity
- Wi-Fi 2.4 GHz, Bluetooth LE
- Hub
- No hub
Product info
- Brand
- PurpleAir
- Type
- Air quality monitor
- Region
- Global
- Availability
- In production
- Model number
- PA-II-Flex
What you get at each price
Compatible options in this category, confirmed against the manufacturer. Spend less or more with your eyes open.
Spend less
$150
SwitchBot Air Purifier
SwitchBot
No hub
Runs locally
You are here
$249
PurpleAir Flex
PurpleAir
No hub
Spend more
$299
Airthings View Plus
Airthings
No hub
