Coway Airmega 400S vs Levoit Core 600S-P Smart Air Purifier
Side-by-side comparison of features, pricing, ratings, and alternatives.
The Coway Airmega 400S is a smart HEPA air purifier designed for large rooms. It features real-time air quality sensing and advanced filtration technology to capture 99.97% of particles as small as 0.3 microns. With its sleek and modern design, it is perfect for living rooms, bedrooms, and offices. The Airmega 400S is also Wi-Fi enabled, allowing users to monitor and control the air quality remotely through the Coway IoCare app.
The Levoit Core 600S-P Smart Air Purifier is designed to provide clean air in large rooms. It features a HEPA filter and smart sensors that monitor air quality, automatically adjusting the fan speed to optimize purification. The device can be controlled via a mobile app, allowing users to check air quality and adjust settings remotely.
- Advanced HEPA filter captures 99.97% of particles as small as 0.3 microns
- Real-time air quality sensing and monitoring
- Wi-Fi enabled for remote control and scheduling
- Quiet operation with a noise level of 22-52 dB
- Effective at removing airborne pollutants
- Easy to use and control through the mobile app
- Quiet operation
- Large room coverage
- Filter replacement can be expensive
- Limited coverage area compared to some other models
- No built-in ionizer or UV light
- Filter replacement can be expensive
- Some users may find the device too large for smaller rooms
- Limited customization options
More alternatives & similar tools
Alternatives to Coway Airmega 400S
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All-steel HEPA and carbon air cleaner built for large rooms and heavy filtration loads.

Advanced PECO filtration eliminates viruses, allergens, and odors in real time
Alternatives to Levoit Core 600S-P Smart Air Purifier
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HEPASilent purifier for large rooms with auto mode and washable pre‑filters.
Large-room smart HEPA purifier with swappable filter types for specific air problems.
The Verdict
AI-generated from listing dataThe Coway Airmega 400S offers larger coverage, quieter operation, and a longer warranty at a higher price, while the Levoit Core 600S-P is cheaper but covers a smaller area.
Key differences
- •Coverage area: 1560 sq ft (Coway) vs 705 sq ft (Levoit).
- •Price: $549 (Coway) vs $249.99 (Levoit).
- •Warranty: 5‑year limited (Coway) vs 1‑year (Levoit).
- •Noise range: 22‑52 dB (Coway) vs fixed 24 dB (Levoit).
- •Power consumption: 60 W (Coway) vs 45 W (Levoit).
Coverage area
Coway covers up to 1560 sq ft, more than double Levoit’s 705 sq ft rating.
Price
Levoit costs $249.99, significantly less than Coway’s $549.
Warranty
Coway provides a 5‑year limited warranty versus Levoit’s 1‑year.
Noise level
Levoit operates at a steady 24 dB, while Coway ranges up to 52 dB at higher fan speeds.
Power consumption
Levoit uses 45 W, 15 W less than Coway’s 60 W.
Smart features
Both offer Wi‑Fi control, real‑time air quality monitoring, and filter‑change alerts.
Ease of maintenance
Both have filter‑replacement indicators; no other maintenance differences specified.
Choose Coway Airmega 400S if…
Large spaces (1500+ sq ft), need long warranty, can afford higher price.
Choose Levoit Core 600S-P Smart Air Purifier if…
Smaller budgets, rooms under 800 sq ft, prefer lower power draw.
Common questions
Which unit is cheaper to run?
Levoit uses 45 W versus Coway’s 60 W, so it consumes less electricity.
Will the Coway’s higher noise ever be a problem?
Coway’s noise ranges from 22 dB (quiet) up to 52 dB at max fan speed; Levoit stays at 24 dB.
How do the warranties compare?
Coway includes a 5‑year limited warranty; Levoit offers only a 1‑year warranty.
