# What are the most energy-efficient smart air purifiers available? — Verified Specification Comparison

> All specification data verified from official manufacturer documentation.

What are the most energy-efficient smart air purifiers available?

## Products

### Coway Airmega Mighty2
```yaml
product: coway-airmega-mighty2
brand: Coway
price_gbp: 173.71
origin_country: null
confidence_score: null
summary_source: generated_from_verified_specs_v1
cadr: Smoke 240 cfm, Dust 242 cfm, Pollen 249 cfm
dimensions: 16.9 x 17.9 x 9.3 in
filter_types: Washable pre-filter, activated carbon filter, HEPA filter
particle_size_range: PM1, PM2.5, PM10
```

- **Price:** £173.71 [^1]
- **Summary:** The Coway Airmega Mighty2 is a three-stage air purifier with washable pre-filtration, activated carbon, and HEPA filtration. It offers real-time particle monitoring, automatic airflow adjustment, Eco mode, and coverage of up to 1,800 square feet per hour, making it well suited to homes with pets, allergies, odors, or wildfire smoke.
- **Ideal For:** It suits people seeking an energy-efficient smart air purifier because it uses up to 56 W and automatically switches to Eco mode when air quality is clean, while providing real-time PM1, PM2.5, and PM10 monitoring.
- **Additional Sources:** [^2]

---
## References & Sources
[^1]: Coway, accessed 2026-09-13. https://cowaymega.com/products/airmega-mighty2-ap-1512n
[^2]: Mart Discover, accessed 2026-09-13. https://martdiscover.com/product/coway-airmega-mighty2-air-purifier-next-gen-of-ap-1512hh-for-large-room-home-cleans-up-to-1800-ft%C2%B2-ap-1512nw/