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BLUEAIR Blue Pure 311i Max Smart Air Purifier for vs Honeywell Allergen Plus Compact HEPA Small Room

Updated August 2026 — BLUEAIR Blue Pure 311i Max Smart Air Purifier for wins on smart features and coverage area, Honeywell Allergen Plus Compact HEPA Small Room wins on energy efficienc.

The BLUEAIR Blue Pure 311i Max is a superior choice for larger spaces and advanced features, while the Honeywell Allergen Plus is a budget-friendly option for smaller rooms.

Why BLUEAIR Blue Pure 311i Max Smart Air Purifier for is better

Coverage

Cleans up to 1,800 sq ft

Filtration

Uses advanced HEPASilent technology

Smart Features

Includes app control for monitoring

Why Honeywell Allergen Plus Compact HEPA Small Room is better

Price

Costs $99.99, more affordable

Noise Level

Operates at 20.81 dBA in Sleep Mode

Compact Design

Ideal for small spaces like dorms

Overall score

BLUEAIR Blue Pure 311i Max Smart Air Purifier for
85
Honeywell Allergen Plus Compact HEPA Small Room
75

Specifications

SpecBLUEAIR Blue Pure 311i Max Smart Air Purifier forHoneywell Allergen Plus Compact HEPA Small Room
FiltrationHEPASilent3-in-1 HEPA
CADR250N/A
Smart ControlYesNo
Energy EfficiencyLowEnergy Star
Room Sizeup to 1800 sq ftup to 530 sq ft

Dimension comparison

BLUEAIR Blue Pure 311i Max Smart Air Purifier forHoneywell Allergen Plus Compact HEPA Small Room

Overview of the BLUEAIR Blue Pure 311i Max

The BLUEAIR Blue Pure 311i Max is a powerful air purifier designed for medium rooms, covering up to 1,800 square feet. This model features advanced HEPASilent dual filtration technology, which captures 99.97% of airborne particles, including dust, pollen, pet dander, mold, and smoke. Priced at $168.99, it represents a significant investment for homeowners looking to improve indoor air quality, particularly in spaces where allergies or pets are a concern. With a bestseller rank of 2065, it’s a popular choice among consumers seeking effective air purification.

Overview of the Honeywell Allergen Plus

The Honeywell Allergen Plus Compact HEPA air purifier is an economical solution for small rooms, covering spaces up to 530 square feet. This unit is priced at $99.99, making it about 41% cheaper than the BLUEAIR model. It features a 3-in-1 HEPA filtration system that captures 99.97% of allergens and includes an air quality sensor that adjusts fan speed automatically. With a bestseller rank of 22559, it caters to budget-conscious consumers looking for reliable air purification without breaking the bank.

Filtration Technology Comparison

The BLUEAIR Blue Pure 311i Max utilizes HEPASilent technology that combines mechanical and electrostatic filtration to efficiently remove airborne pollutants. This allows it to deliver high filtration efficiency with lower energy use and noise compared to traditional HEPA systems. In contrast, the Honeywell Allergen Plus features a 3-in-1 HEPA filtration system designed to trap allergens, odors, and larger particles like pet hair. While both models effectively capture 99.97% of harmful particles, the BLUEAIR's advanced filtration technology may offer superior performance in larger areas.

Room Coverage and Efficiency

The BLUEAIR Blue Pure 311i Max is designed for larger spaces, capable of cleaning air in rooms up to 1,800 square feet. It can refresh the air in a 929-square-foot area in just 30 minutes, making it ideal for medium-sized homes. On the other hand, the Honeywell Allergen Plus is suited for smaller spaces, effectively filtering air in rooms up to 530 square feet. This model circulates air up to 4.8 times per hour in a 110-square-foot room, ensuring quick purification in compact environments. If you have a larger space, the BLUEAIR offers significant advantages.

Noise Levels and Operation

The BLUEAIR Blue Pure 311i Max operates quietly, with noise levels ranging from 23 to 50 dB, making it suitable for bedrooms and nurseries. It is QuietMark-certified, emphasizing its low noise output during operation. Conversely, the Honeywell Allergen Plus also prioritizes quiet operation, with a Sleep Mode that operates at just 20.81 dBA. Both models are designed for minimal disturbance, but the Honeywell may be slightly quieter in its lowest setting, making it a great choice for nighttime use.

Smart Features and Controls

The BLUEAIR Blue Pure 311i Max stands out with its smart air purification capabilities. It includes built-in sensors that automatically adjust fan speed based on pollution levels and can be controlled via the Blueair mobile app. Users can monitor air quality, schedule operations, and receive filter life notifications remotely. In contrast, the Honeywell Allergen Plus features AQSense Auto Mode, which also adjusts fan speeds based on real-time air quality. However, it lacks the advanced app control that the BLUEAIR offers, making it less convenient for tech-savvy users.

Design and Aesthetics

The BLUEAIR Blue Pure 311i Max boasts a minimalist Scandinavian design with a 360° air intake, allowing it to blend seamlessly into modern home decor. Its compact design is not only stylish but functional, ensuring effective air circulation. The Honeywell Allergen Plus also has a compact and stylish tabletop design, making it suitable for placement in small spaces like dorm rooms or offices. While both purifiers are visually appealing, the BLUEAIR’s design may cater more to those looking for a contemporary aesthetic.

Which should you buy?

Ultimately, the choice between the BLUEAIR Blue Pure 311i Max and the Honeywell Allergen Plus depends on your specific needs. If you're looking for a high-capacity air purifier for larger spaces and value smart technology, the BLUEAIR is worth the investment at $168.99. However, if you need an economical option for smaller areas without sacrificing air quality, the Honeywell at $99.99 is a solid choice. Both models excel in their categories, but understanding your room size and desired features will guide you to the best selection for your home.