Coway Airmega 300 Smart Air Purifier with 1,256 vs Coway Airmega AP-1512HH True HEPA Purifier with
Updated August 2026 — Coway Airmega 300 Smart Air Purifier with 1,256 wins on coverage and power, Coway Airmega AP-1512HH True HEPA Purifier with wins on price and noise.
The Coway Airmega 300 excels in coverage and filtration efficiency, while the AP-1512HH offers smart features and a lower price. Choose based on your space and budget needs.
Why Coway Airmega 300 Smart Air Purifier with 1,256 is better
Coverage
Airmega 300 covers 1,256 sq. ft.
Filtration
Airmega 300 captures ultra-fine particles effectively.
Sales Rank
Airmega 300 has a strong performance in larger spaces.
Why Coway Airmega AP-1512HH True HEPA Purifier with is better
Price
AP-1512HH is $229.99, more affordable.
Smart Features
AP-1512HH includes air quality monitoring.
Noise Level
AP-1512HH operates quieter at lower dB.
Overall score
Specifications
| Spec | Coway Airmega 300 Smart Air Purifier with 1,256 | Coway Airmega AP-1512HH True HEPA Purifier with |
|---|---|---|
| Current Price | $308.99 | $229.99 |
| Coverage Area | 1,256 sq. ft. | 361 sq. ft. |
| Power Consumption | 56W | 77W |
| Filtration Efficiency | 99.5% | 99.97% |
| Sales Rank | 27,547 | 1,867 |
Dimension comparison
Overview of the Coway Airmega 300 and AP-1512HH
When comparing the Coway Airmega 300 and the Coway Airmega AP-1512HH, the key differences lie in their coverage areas and pricing. The Coway Airmega 300 is priced at $308.99, while the AP-1512HH is more budget-friendly at $229.99, making it approximately 26% cheaper. Both purifiers are designed by Coway, a brand known for its effective air purification technology, but they cater to different room sizes and needs.
Coverage Area Comparison
The Coway Airmega 300 offers an impressive coverage area of 1,256 square feet, making it suitable for larger spaces. In contrast, the Coway Airmega AP-1512HH is designed for smaller areas, accommodating up to 361 square feet. This significant difference in coverage means that if you're looking to purify the air in a large room or open space, the Airmega 300 is the clear choice. Conversely, for smaller rooms, the AP-1512HH may suffice and save you money.
Filtration Efficiency
Both air purifiers utilize advanced filtration systems to improve indoor air quality, but the Coway Airmega 300 boasts a robust testing record that highlights its ability to capture ultra-fine particles. Its HEPA filter is compliant with IEST-RP-CC007 standards and has been tested to remove over 99.5% of various pollutants. The AP-1512HH also features a four-stage filtration system that captures up to 99.97% of particles as small as 0.3 microns, making it highly effective for allergens and pollutants. While both are efficient, the Airmega 300's extensive testing and larger coverage area may provide added peace of mind for users in bigger spaces.
Energy Efficiency and Noise Levels
Energy efficiency is a critical factor for many buyers, and both models demonstrate strong performance. The Coway Airmega 300 consumes 56 watts of power, while the AP-1512HH uses slightly more at 77 watts. Despite this difference, both units are ENERGY STAR certified, ensuring they operate efficiently. In terms of noise, the AP-1512HH operates quietly, with sound levels ranging from 24.4 dB to 53.8 dB. The Airmega 300 also performs quietly, although specific noise levels are not detailed. If noise levels are a concern, the AP-1512HH may have a slight edge due to its lower minimum noise output.
Smart Features and Usability
The Coway Airmega AP-1512HH is equipped with several smart features, including an air quality monitoring sensor that communicates real-time air quality status and an eco mode that activates when no pollution is detected for 30 minutes. It also includes a timer feature that allows the user to set operation times of 1, 4, or 8 hours. The Airmega 300, while lacking these specific smart features, still offers simplicity and efficiency for users focused on straightforward operation. Those looking for advanced features may prefer the AP-1512HH, especially given its user-friendly design.
Maintenance and Filter Replacement
Maintenance is crucial for air purifiers, and both models include filter indicators to notify users when it's time to replace or clean the filters. The Coway Airmega AP-1512HH specifically checks both the pre-filter and HEPA filter, making it easier for users to maintain optimal performance. The Airmega 300's maintenance process is also straightforward, but specific details on filter replacement intervals are not provided. Given the AP-1512HH's clarity in maintenance, it may be the better option for users who prioritize ease of upkeep.
Sales Rank and Popularity
The Coway Airmega AP-1512HH has a significantly higher sales rank at 1,867, indicating its popularity among consumers. In comparison, the Airmega 300 has a sales rank of 27,547, suggesting it may not be as widely favored. This difference could reflect user preferences for size, price, and features. A higher sales rank often suggests better consumer satisfaction and reliability, which may influence potential buyers in their decision-making process.
Which should you buy?
Ultimately, the decision between the Coway Airmega 300 and the Coway Airmega AP-1512HH depends on your specific needs. If you require a purifier for a larger space and are willing to invest more, the Airmega 300 is an excellent choice with its extensive coverage and robust filtration. However, if you're looking for a more budget-friendly option that still offers great filtration and smart features, the AP-1512HH is a solid pick. With its lower price point and higher sales rank, it may provide better value for those with smaller rooms or limited budgets.

