19% OFF
$112.99
$139.99
Updated October 2026
Data from the official Blueair and Coway sites.
2026 verdict
Coway Airmega AP-1512HHS narrowly beats the Blueair Blue Pure 511i Max overall, carrying a higher owner rating, a three-year warranty against one year, and a deeper filtration stack that adds a switchable ionizer stage on top of its True HEPA filter, where the Blueair uses a HEPASilent filter; both have a washable pre-filter. The Blueair Blue Pure 511i Max answers with AHAM Verifide and Energy Star certification, neither of which the Coway Airmega AP-1512HHS carries, more detailed air quality sensing, reporting PM1, PM2.5 and PM10 separately where the Coway Airmega AP-1512HHS reads PM2.5 only, plus a lower price and a much smaller footprint that fits a nightstand rather than a floor. Both connect over Wi-Fi to Alexa and Google Home, and the Coway Airmega AP-1512HHS's extra ionizer stage is optional, most testing bodies recommend leaving it off since the HEPA filtration works fully without it. Choose the Coway Airmega AP-1512HHS for a larger room and a longer warranty, and choose the Blueair Blue Pure 511i Max for a compact bedroom unit with richer particle data.
News by email
Still comparing? Get what's new by email
New releases and the smart home news worth knowing, in your inbox.
No spam. Unsubscribe in one click.
| Feature | Blueair Blue Pure 511i Max | Coway Airmega AP-1512HHS | Winner |
|---|---|---|---|
| Price | $112.99 | $299.99 | Blueair Blue Pure 511i Max |
| Rating | 4.5 | 4.6 | Coway Airmega AP-1512HHS |
| Warranty | 1 year | 3 years | Coway Airmega AP-1512HHS |
| Connectivity | 2.4 GHz WiFi, Bluetooth | 2.4 GHz WiFi | Blueair Blue Pure 511i Max |
| Filtration | HEPA Filter, Activated Carbon Filter, Washable Pre-Filter | HEPA Filter, Activated Carbon Filter, Washable Pre-Filter, Ionizer | Coway Airmega AP-1512HHS |
| Sensors | PM1, PM2.5, PM10 | PM2.5 | Blueair Blue Pure 511i Max |
| AHAM Verifide | YES | NO | Blueair Blue Pure 511i Max |
| Integrations | Google Home, Alexa | Google Home, Alexa | Tie |
| Auto Mode | YES | YES | Tie |
19% OFF
$112.99
$139.99
- + Price: $112.99
- + Connectivity: 2.4 GHz WiFi, Bluetooth
- + Sensors: PM1, PM2.5, PM10
- - Rating: 4.5 vs 4.6
- - Warranty: 1 year vs 3 years
Winner
$299.99
- + Rating: 4.6
- + Warranty: 3 years
- + Filtration: HEPA Filter, Activated Carbon Filter, Washable Pre-Filter, Ionizer
- - Price: $299.99 vs $112.99
- - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth
Frequently Asked Questions
Which is better overall: Blueair Blue Pure 511i Max or Coway Airmega AP-1512HHS?
The Coway Airmega AP-1512HHS wins overall, with a higher owner rating, a three-year warranty and a deeper filtration stack including an ionizer stage. The Blueair Blue Pure 511i Max wins on price, on AHAM Verifide and Energy Star certification, and on more detailed particle sensing.
What is the biggest difference between the Blueair Blue Pure 511i Max and the Coway Airmega AP-1512HHS?
Room size. The Coway Airmega AP-1512HHS is rated for a larger room, 326 sq ft against 237 sq ft for the Blue Pure 511i Max, which is Blueair's compact, nightstand-sized model built for a bedroom or small office.
Should I use the Coway Airmega's ionizer?
Generally no. Most consumer testing bodies recommend leaving ionizers switched off, since the mechanical True HEPA filtration in the Coway Airmega AP-1512HHS works fully without it. The Blueair Blue Pure 511i Max has no ionizer stage at all.
Which purifier has the more detailed air quality sensor?
The Blueair Blue Pure 511i Max, which reads PM1, PM2.5 and PM10 as three separate numbers. The Coway Airmega AP-1512HHS reports PM2.5 only, though it still drives a responsive Auto Mode from that single reading.
Who should buy the Coway Airmega AP-1512HHS?
Buyers covering a larger room who want a longer warranty and a True HEPA filter with an optional ionizer should choose the Coway Airmega AP-1512HHS.
Who should buy the Blueair Blue Pure 511i Max?
Buyers furnishing a bedroom or small office who want detailed particle data and a lower price should choose the Blueair Blue Pure 511i Max.
Spotted something wrong on this page? Tell us and we will fix it.
Our store on AmazonShop our ideas on AmazonLists of the smart home setups we would put together ourselves, ready to add to your Amazon cart.Shop on AmazonFull comparison table
Compare all 41 Air Purifiers side by side
You are looking at two of them. The full table lines up all Air Purifiers in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 41 Air Purifiers
- 58 specs compared
- 55 filters
- Air Purifiers
Smart Air Purifier 2 Pro
- Air Purifiers
Core 300-P
- Air Purifiers
Core 200S-P
- Air Purifiers
Vital 200S-P
- Air Purifiers
Eleva 300X
- Air Purifiers
Core Mini-P
- Air Purifiers
5520
- Air Purifiers
5530
- Air Purifiers
5510
- Air Purifiers
Airmega Mighty2
- Air Purifiers
Core 600S-P
- Air Purifiers
Core 400S-P
- Air Purifiers
Vital 100S-P
- Air Purifiers
BreatheClear Max HP362
- Air Purifiers
Air Purifier FP10
- Air Purifiers
Blue Pure 311i Max
- Air Purifiers
Purifier Hot+Cool Gen1 HP10
- Air Purifiers
BreatheClear HP162
- Air Purifiers
Purifier Cool PC2 De-NOx
- Air Purifiers
Air Purifier AP5
