# Blue Pure 511i Max

**Doorprice Score 6.2/10** (Mixed; likely 5.1–7.4, low confidence).
Price: $139.99 at Blueair (with est. tax $150.20; shipping set at checkout). Store rating 4.5/5 from 5724 ratings.

## Specs
- Recommended room size: 18–460 m² (varies by model)
- Clean air delivery rate (CADR): 174 CFM (pollen), 159 CFM (dust), 153 CFM (smoke)
- Air changes per hour (ACH): 4.8
- Noise level: 19–48 dB (varies by speed setting)
- Power consumption: 17 W
- Dimensions: 14.5 x 9.3 x 9.3 cm
- Product weight: 1.9 kg

## Where to buy
Buy at Blueair: https://www.blueair.com/cart/49656097407262:1?_gsid=jYsPMiAdiBHR&utm_source=shopify&utm_medium=catalog
For the price delivered to a ZIP (real shipping options, promotions, estimated tax) ask for the delivered price of shopify:6XIFMqhCunkZ3gdHIz6qM.