Main trade-off
Levoit Core 600S-P
The combined main filter is not washable
Head-to-head
Choose Core 600S-P for app scheduling, a smaller footprint and a lighter cabinet. Choose Airmega 300 if onboard operation and washable prefilters matter more. Their room labels use different air-change rates, so Coway's 628 sq ft figure is not directly larger than Levoit's 606 sq ft rating.
Before you choose
Coway's 628 sq ft at 4 ACH is roughly 523 sq ft at 4.8 ACH by proportional conversion.
What this is based on
628 × 4 ÷ 4.8 = 523.3 sq ft. This is an explanatory conversion of Coway's own room label, not a new certified room rating.
Main trade-off
The combined main filter is not washable
Main trade-off
No app control in this exact 300 model

The Amazon listing mixes US and European Core 600S-P model identifiers. Its purchase link is paused while the exact US model, voltage and package are verified.

Compare Core 600S-P and Airmega 300 using explicit air-change rates. Check app control, washable prefilters, cabinet size and lifting weight.
Choose Core 600S-P for app scheduling, a smaller footprint and a lighter cabinet. Choose Airmega 300 if onboard operation and washable prefilters matter more. Their room labels use different air-change rates, so Coway's 628 sq ft figure is not directly larger than Levoit's 606 sq ft rating.
Winner by situation
Airmega 300 is not the connected 300S.
The published widths are 12.3 and 13.6 inches, before clearance.
Coway has two washable prefilters. Levoit's combined main filter must not be washed.
Levoit's rating directly covers it. Coway's 4 ACH label converts to about 523 sq ft, but that conversion is not a separate certified 4.8 ACH rating.
Both provide onboard controls. An app is optional on Levoit.
What matters in practice
Coway's 628 sq ft at 4 ACH is roughly 523 sq ft at 4.8 ACH by proportional conversion.
628 × 4 ÷ 4.8 = 523.3 sq ft. This is an explanatory conversion of Coway's own room label, not a new certified room rating.
Its shell footprint is about 18% smaller.
12.3² = 151.29 sq in. 13.6² = 184.96 sq in. (184.96 − 151.29) ÷ 184.96 = 18.2%, before clearance.
Core 600S-P is 7.7 lb lighter.
21.4 − 13.7 = 7.7 lb, about 36% of Coway's weight. Carrying comfort still depends on grip and access.
Try your real numbers
The result checks hard limits only. Preferences stay out of the calculation.
391 CFM of verified clean-air delivery gives about 9.8 air changes per hour here. The 5 ACH target needs 200 CFM.
285 CFM of verified clean-air delivery gives about 7.1 air changes per hour here. The 5 ACH target needs 200 CFM.
This uses maximum-speed, pollutant-specific CADR and a five-air-changes-per-hour target. Quieter settings deliver less clean air. It does not substitute raw airflow or a one-change coverage claim.

Levoit, LAP-C601S-WUS
A powerful cylindrical smart purifier that delivers large-room airflow with a small footprint and polished VeSync controls.
The Amazon listing mixes US and European Core 600S-P model identifiers. Its purchase link is paused while the exact US model, voltage and package are verified.

Coway, AP-1515H
A two-sided purifier for a living room with washable prefilters, automatic fan control and no app setup.
Meaningful differences
| What changes | Levoit Core 600S-P | Coway Airmega 300 | Why it matters |
|---|---|---|---|
| Published room rating | 606 sq ft at 4.8 ACH | 628 sq ft at 4 ACH | A higher area at a lower circulation rate is not a direct win. |
| Published CADR basis | 391 CFM generic CADR | 285 smoke, 306 dust, 339 pollen CFM | Do not quietly relabel a generic CADR as a pollutant-specific test. |
| Remote controls | VeSync app and schedules | No Wi-Fi on Airmega 300 | The connected Coway 300S is a different model. |
| Cabinet base | 12.3 × 12.3 in | 13.6 × 13.6 in | Actual placement also needs intake clearance. |
| Weight | 13.7 lb | 21.4 lb | Moving between floors changes the burden. |
| Filter upkeep | Combined filter with outer prefilter | Two washable prefilters plus two Max2 filters | Both require main-filter replacement. |
What you give up
Recommendation switch
Choose Levoit Core 600S-P. Airmega 300 has no Wi-Fi.
Choose Coway Airmega 300. That is a documented Coway feature.
What matters in practice
606 at 4.8 ACH and 628 at 4 ACH are different workloads. The proportional conversion makes the distinction visible, but it should not be presented as a new certification. Ceiling height, open doors and the chosen speed still affect real operation.
Levoit suits changing schedules and remote operation. Airmega 300 has local automatic control, a timer and an Eco mode. Buying Coway for simplicity is reasonable when remote access would add little.
Coway's washable prefilters can be useful where large debris accumulates, but its Max2 filters still need replacement. Levoit has a smaller and lighter cabinet. Price the exact filter set rather than assuming that one filter shape is cheaper over several years.
What the facts say
Useful conclusions from the current air purifiers comparison, followed by the checked facts used to reach them.
| Product | Needs matched | Checked facts | Source records |
|---|---|---|---|
| Levoit Core 600S-P |
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| Coway Airmega 300 |
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Ready to choose?
Open either model on Amazon to check the current price, customer reviews and delivery options.

Use VeSync scheduling and remote controls
The Amazon listing mixes US and European Core 600S-P model identifiers. Its purchase link is paused while the exact US model, voltage and package are verified.

Use onboard controls without Wi-Fi
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