ConsFirst / Air purifiers / Compare
Coway Airmega Mighty2 vs Levoit Core 600S Smart Air Purifier
Which one has the downsides you can live with?
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The short answer
Coway Airmega Mighty2 ranks higher (#3 vs #4 of 8) and scores better on cleaning performance, quietness, durability. Levoit Core 600S Smart Air Purifier wins on controls & app.
The biggest complaint about the Coway Airmega Mighty2 is no app, touch-only controls; for the Levoit Core 600S Smart Air Purifier it's loud or rattling at high speeds. Pick the one whose catch bothers you less.
Side by side
| Coway Airmega Mighty2 | Levoit Core 600S Smart Air Purifier | |
|---|---|---|
| Rank in air purifiers | #3 | #4 |
| Price tier | $$ | $$ |
| Type | HEPA + carbon | HEPA + carbon |
| Amazon 1–2★ share | 4% | 4% |
| Overall score | 3.9 | 3.7 |
| Cleaning performance | 5.0 | 4.5 |
| Quietness | 4.5 | 2.5 |
| Filter cost | 3.0 | 3.0 |
| Controls & app | 3.0 | 5.0 |
| Durability | 4.0 | 3.5 |
Price tiers: $ under $150 · $$ $150–350 · $$$ over $350. Highlighted = clearly better (a score gap of 0.3 or more, or a 1–2★ share at least 3 points lower). Scores are explained, with sources, on each product's page.
Top complaints
Coway Airmega Mighty2
- No app, touch-only controls
Wirecutter says the touchscreen has no physical cues, which may be hard for people with visual or dexterity impairments, and there is no app-connected version. HouseFresh also lists no app support and buttons that aren't backlit.
Source: Wirecutter, HouseFresh review - Pricier to buy and run
HouseFresh lists it at $269.99 with a $69.99 yearly filter and calls it the most expensive mid-sized unit to buy and run in year one ($415.07). It costs more than comparable Winix, Levoit and Blueair models.
Source: HouseFresh review - Smart mode drops to sleep in the dark; a rattle
HouseFresh found Smart mode switches to Sleep mode in darkness, so it recommends running it on speed 2. One of its two units rattled at low speeds, possibly from transit damage.
Source: HouseFresh review
Levoit Core 600S Smart Air Purifier
- Loud or rattling at high speeds
Wirecutter heard a persistent rattle on medium-high and high that repositioning didn't fix. HouseFresh measured 62.3 dBA at top speed and an annoying whir on speed 1.
Source: Wirecutter, HouseFresh review - Filter not HEPA as first advertised
HouseFresh says the filter is HEPA-grade only in sleep mode and that Levoit dropped its HEPA claims in 2023 after a BBB challenge brought by Dyson. Particle filtration is still excellent.
Source: HouseFresh review - Bonded filter and running cost
HouseFresh notes the bonded filter must be replaced whole when the carbon is spent ($59.99, 6-12 months; about $173/year to run). Amazon shoppers are split on whether it's worth the price.
Who should pick which
Pick the Coway Airmega Mighty2 if
Bedrooms and living rooms up to about 400 sq ft
Quiet overnight running
People who want a dark display while it runs
Skip it if: You want app or voice control; You're on a tight budget; You need tactile buttons
Pick the Levoit Core 600S Smart Air Purifier if
Large rooms on a mid budget
App automations and smart-home setups
Fast cleanup on high
Skip it if: You want quiet high-speed running; You want a true-HEPA-rated filter; You're short on floor space
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