Blueair Blue Pure 511i Max
#1 in Medium roomsFull review
A compact, quiet smart purifier for bedrooms, nurseries and home offices.
Amazon $112.99$112.99
3.6/5
A long-running favourite for a bedroom or living room that’s still cheap on Amazon. It has an air quality sensor but no app.
- 233 cfmSmoke CADR
- $59.79/yearFilters
- 24 to 53 dBNoise
- 1 yearsWarranty
Check price at Amazon$154.98
Price checked October 22, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- Strong airflow for the price, enough for a large bedroom
- Sensor-driven auto mode and an eco mode that idles the fan
- Filters cost about $60 a year
Cons
- Its CADR is Coway’s own claim, not AHAM or ENERGY STAR certified
- No app or Wi-Fi
How it scores
The rating comes from 6 measured or published factors, each scored 0-100 against fixed reference points for its room size. How we rank explains each one.
Specifications
| Model number | AP-1512HH |
|---|---|
| Performance | |
| Smoke CADR | 233 cfm |
| Dust CADR | 246 cfm |
| Pollen CADR | 240 cfm |
| CADR certified by | Maker (AHAM AC-1 test) |
| Coverage (maker) | 361 sq ft |
| Noise | 24 to 53 dB |
| Efficiency | |
| ENERGY STAR | No |
| Power at top speed | 77 W |
| Filters | |
| Filter | HEPA |
| Activated carbon | Yes |
| Replacement | AP-1512HH-FP filter set |
| Replacement cost | $59.79 every 12 months |
| Yearly filter cost | $59.79/year |
| Ionizer | Yes, can be switched off |
| CARB certified (ozone) | Yes |
| Controls and build | |
| Air-quality sensor | particle |
| Auto mode | Yes |
| Wi-Fi app | No |
| Fan speeds | 3 |
| Dimensions | 18.3 x 16.8 x 9.6 in |
| Weight | 12.3 lb |
| Warranty | 1 years |
Alternatives in this room size
Levoit Core 400S
#2 in Medium roomsFull review
A strong all-round pick for a living room or large bedroom, with a real particle sensor and app control at a mid-range price.
Amazon $189.97$189.97
Coway Airmega 150
#4 in Medium roomsFull review
A quiet, good-looking purifier for a small bedroom or nursery. Bigger rooms need more airflow for the money.
Amazon $186.29$186.29
Compare
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