Coway Airmega AP-1512HH True HEPA Purifier with vs Honeywell Allergen Plus Compact HEPA Small Room
Updated August 2026 — Coway Airmega AP-1512HH True HEPA Purifier with wins on features and maintenance, Honeywell Allergen Plus Compact HEPA Small Room wins on noise level and energy use.
The Coway Airmega AP-1512HH offers superior features and air quality monitoring, while the Honeywell Allergen Plus is a budget-friendly option for smaller spaces.
Why Coway Airmega AP-1512HH True HEPA Purifier with is better
Coverage
Coway covers up to 361 sq. ft.
Filtration
Coway has a 4-stage filtration system.
Air Quality
Coway features real-time air quality monitoring.
Why Honeywell Allergen Plus Compact HEPA Small Room is better
Price
Honeywell is priced at $99.99.
Size
Honeywell is compact and fits in small spaces.
Noise
Honeywell operates as low as 20.81 dBA.
Overall score
Specifications
| Spec | Coway Airmega AP-1512HH True HEPA Purifier with | Honeywell Allergen Plus Compact HEPA Small Room |
|---|---|---|
| Filtration | 4-stage | 3-in-1 |
| Noise Level | 24.4-53.8 dB | 20.81 dBA |
| Energy Star | Yes | Yes |
| Auto Mode | Yes | Yes |
| Timer | Yes | Yes |
Dimension comparison
Price Comparison
The Coway Airmega AP-1512HH is priced at $229.99, while the Honeywell Allergen Plus Compact HEPA is significantly cheaper at $99.99, making it about 57% less expensive. This price difference may be a key factor for budget-conscious consumers. The Coway model's higher price point reflects its advanced features and larger coverage area, but those looking for a basic air purifier for smaller spaces might find the Honeywell model to be more appealing due to its affordability.
Coverage Area
When it comes to coverage area, the Honeywell Allergen Plus is designed for rooms up to 530 square feet, which is substantial for a compact air purifier. In contrast, the Coway Airmega AP-1512HH accommodates rooms up to 361 square feet. This means that the Honeywell model is better suited for larger spaces, making it a more versatile option for homes with bigger rooms or open floor plans.
Filtration System
The filtration systems of both products are robust, but they differ in design and effectiveness. The Coway Airmega AP-1512HH features a 4-stage filtration system, including a True HEPA filter that captures up to 99.97% of particles as small as 0.3 microns. The Honeywell Allergen Plus utilizes a 3-in-1 HEPA filtration system that also captures 99.97% of allergens but is specifically noted for its ability to tackle pet dander, smoke, and odors. While both systems are effective, the Coway’s additional filtration stage may provide a slight edge in terms of overall air quality improvement.
Air Quality Monitoring
The Coway Airmega AP-1512HH comes equipped with an advanced pollution sensor that provides real-time air quality updates, using a color-coded LED indicator to inform users about indoor air cleanliness. In comparison, the Honeywell Allergen Plus features an AQSense Auto Mode that adjusts the fan speed based on air quality levels, indicated by color-coded lights as well. Both models offer smart features to enhance user experience, but the Coway’s detailed monitoring may be more appealing for those who want precise information about their indoor air quality.
Operating Noise Level
Noise level can be a significant consideration, especially for users who plan to place an air purifier in bedrooms or nurseries. The Coway Airmega AP-1512HH operates at a noise level that ranges from 24.4 dB to 53.8 dB. The Honeywell Allergen Plus is designed for quiet operation as well, with a Sleep Mode that operates as low as 20.81 dBA. This feature makes the Honeywell model particularly suitable for nighttime use, where noise levels can disrupt sleep, giving it an edge for those prioritizing a quiet environment.
Design and Size
The design and size of an air purifier can affect its placement and aesthetic appeal in a home. The Coway Airmega AP-1512HH has a more traditional air purifier design, with dimensions that may be bulkier compared to the sleek and compact design of the Honeywell Allergen Plus. The Honeywell model is specifically designed to fit easily in smaller spaces, like dorm rooms and offices, making it a more practical choice for users constrained by space.
Energy Efficiency
Both air purifiers are ENERGY STAR certified, indicating that they are designed to operate efficiently and help save on energy costs. However, the specifics of their energy consumption differ. The Coway Airmega AP-1512HH consumes 77 watts, while the Honeywell Allergen Plus is noted for its low energy consumption, although the exact wattage isn't specified. For users looking to minimize their energy bills, the Honeywell model may offer an attractive option given its compact size and efficiency, particularly in smaller rooms.
Which should you buy?
Ultimately, the decision between the Coway Airmega AP-1512HH and the Honeywell Allergen Plus comes down to individual needs and preferences. If you require a purifier for larger spaces and value detailed air quality monitoring, the Coway Airmega, despite its higher price of $229.99, offers superior features. However, if you're looking for an affordable, compact, and effective air purifier for smaller rooms, the Honeywell Allergen Plus at $99.99 presents an excellent choice, especially for users with budget constraints. Consider your specific needs regarding room size, filtration efficiency, and noise level to make the best choice for your home.

