At a Glance
- Best overall air purifier: Blueair Blue Pure 311i Max, T90 1 min 28 sec
- Lab winners: Coway Airmega 400S (high fan) and Shark HP232 (low fan)
- Holiday sales: many top picks discounted, Shark HP232 $100 off
- Why it matters: Choosing the right purifier can cut allergens, improve sleep, and save on energy bills.
The new round of lab tests by News Of Fort Worth shows that the Blueair Blue Pure 311i Max delivers the fastest overall particle removal, while the Coway Airmega 400S and Shark HP232 win awards for speed at high and low fan settings, respectively.
Lab-Tested Winners
The testing measured T90 (time to clear 90% of smoke particles), noise levels, and energy use. The Coway Airmega 400S cleared the chamber in 21 sec at its highest fan, earning the high-fan award. The Shark HP232 achieved 1 min 17 sec at its lowest fan, winning the low-fan award.
- Coway Airmega 400S: T90 21 sec, energy 21.84 kWh, noise 55.53 dBA (high)
- Shark HP232: T90 1 min 17 sec, energy 11.50 kWh, noise 37.31 dBA (low)
- Blueair Blue Pure 311i Max: T90 1 min 28 sec, energy 11.65 kWh, noise 34.84 dBA (low)
Top Models for Different Needs
Depending on room size, budget, and noise tolerance, buyers can pick a model that balances speed, efficiency, and quietness.
| Model | T90 | Energy (kWh) | Noise (dBA) |
|---|---|---|---|
| Blueair Blue Pure 311i Max | 1 min 28 sec | 11.65 | 34.84 |
| Coway Airmega 400S | 21 sec (high) | 21.84 | 55.53 |
| Shark HP232 | 1 min 17 sec (low) | 11.50 | 37.31 |
| Windmill 3-in-1 | 1 min 7 sec (fine) | 9.61 | 43.87 |
| Oransi Mod Plus | 1 min 29 sec | 28.32 | 62.80 |
These figures come from a controlled smoke-chamber test that measures how quickly each unit removes particles from the air.
Dr Mark Hyman explained:
> “We’re constantly breathing in particles, allergens and toxins that can impact our health.”
Key Takeaways
- Blueair Blue Pure 311i Max is the best overall purifier for most homes.
- Coway Airmega 400S and Shark HP232 win lab awards for speed at high and low fan settings.
- Holiday discounts make it an opportune time to upgrade.
With winter air often drier and allergens higher, investing in a proven purifier can keep indoor air cleaner and breathing easier.
