#10

BLUEAIR

BLUEAIR Blue Pure 311i Max

Name: Blue Pure 311i Max
Brand: BLUEAIR
SKU: B0BN2LZ9JH
Price: 169 JPY
Availability: InStock
Rating: 4.3125 (1 reviews)

Rating

Model: 3332111100

$169(incl. tax)Amazon price as of 2025-09-02

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Product Overview

The Blue Pure 311i Max is designed for medium-sized rooms, utilizing Blueair's HEPASilent technology for efficient air purification. It cleans up to 929 sqft in 30 minutes, removing 99.97% of airborne particles down to 0.1 microns, including dust, pollen, pet dander, and odors. Features include app control, air quality monitoring, and a RealTrack filter tracking system. Its quiet operation and customizable pre-filters make it suitable for bedrooms, living rooms, and offices, ensuring a healthier indoor environment.

Product Specifications

Applicable Area

1858sq ft

CADR (Smoke)

250CFM

CADR (Dust)

250CFM

CADR (Pollen)

250CFM

Filter Type

HEPASilent, Activated Carbon

Number of Fan Speeds

Noise Level (Min)

23dB

Noise Level (Max)

50dB

Power Consumption

Smart Features

Yes

Size & Weight

Weight

7.7 pounds

Hight

19"

Width

12.5"

Depth

12.5"

Features

Odor Sensor Function

Feature Description

Equipped with a sensor that detects odors in the room and automatically adjusts the air purification level. This allows for quicker response to sudden smells, such as cooking odors or pet odors, and ensures the air remains fresh without requiring manual adjustments.

About This Product

This unit does not have a dedicated odor sensor function. However, the activated carbon filter helps to remove odors, providing a basic level of odor control, though not as responsive as a dedicated sensor.

Dust Sensor Function

Feature Description

Equipped with a sensor that detects dust particles in the air and automatically adjusts the air purification level. The air purifier can automatically increase its fan speed when it detects a high concentration of dust, like during cleaning or when opening windows, ensuring efficient particle removal.

About This Product

This unit does not have a dedicated dust sensor function. However, the auto mode adjusts fan speed based on overall air quality, providing some level of automatic response to dust and particles, though not as precise as a dedicated sensor.

PM2.5 Display Function

Feature Description

Displays the concentration of PM2.5 (fine particulate matter) in the air. Allows you to visually monitor the air quality in your room. You can use this information to better understand the effectiveness of the air purifier and take appropriate actions based on real-time air quality data.

About This Product

This unit does not have a PM2.5 display function. Air quality is indicated via a 5-color AQI, which provides a general indication of air quality but lacks the precision of a PM2.5 display, limiting real-time monitoring capabilities.

Filter Replacement Indicator Function

Feature Description

Indicates when the filter needs to be replaced. This ensures that the air purifier operates at optimal efficiency. Prevents reduced air purification performance due to a clogged filter, maintaining consistent air quality.

About This Product

The RealTrack algorithm accurately calculates filter life based on usage, providing a more accurate indication of when to replace the filter. This ensures optimal performance and prevents reduced air purification due to a clogged filter.

Child Lock Function

Feature Description

Disables the control panel to prevent unintended changes to the settings. This prevents children from accidentally turning off the air purifier or changing the settings. Provides peace of mind when the air purifier is placed in areas accessible to children.

About This Product

The child lock function disables the control panel, preventing unintended changes to settings. This provides peace of mind when the air purifier is placed in areas accessible to children, ensuring consistent operation.

Sleep Mode Function

Feature Description

Reduces the operating noise and dims the display lights for quiet operation during sleep. Allows for comfortable use in the bedroom without disturbing sleep. This is ideal for those who are sensitive to noise or light while sleeping.

About This Product

The sleep mode reduces operating noise and dims the display lights for quiet operation during sleep. This makes it ideal for use in bedrooms, ensuring comfortable and undisturbed rest for those sensitive to noise or light.

SHOPSTAFF Rating Score

#10

Ranked #10 out of 100 products in Category

4.3

Overall Rating

The Blue Pure 311i Max is a good choice for medium rooms, offering smart features and quiet operation. It is positioned as a mid-range option with good performance. Expected to last several years with proper maintenance.

Coverage Area (CADR)

4.3

Rating Criteria Explanation

The Coverage Area, often indicated by the Clean Air Delivery Rate (CADR) in cubic feet per minute (CFM) or square footage, is a critical factor. It determines how large of a room the air purifier can effectively clean. Consider the size of the room where you intend to use the air purifier. If you have a large living room, a model with a higher CADR is essential to ensure that the air is being effectively filtered throughout the space. Choosing an air purifier with an inadequate CADR for the room size will result in subpar air purification. DBFIT's AP300 is designed for large rooms up to 3000 sq. ft, which is a considerable coverage area, so if you have a smaller space, you may want to look for a more appropriately sized unit, while those with very large areas should confirm that this CADR is sufficient.

Rating Comments

The CADR is suitable for medium-sized rooms, effectively cleaning spaces up to 929 sqft in 30 minutes. It ensures good air purification for bedrooms, living rooms, and offices, making it versatile for home use.

HEPA Filter Quality and Type

4.5

Rating Criteria Explanation

The HEPA filter is the heart of any HEPA air purifier. It's crucial to understand the quality and type of HEPA filter used. A true HEPA filter is certified to capture 99.97% of particles as small as 0.3 microns, including dust, pollen, pet dander, and mold spores. Some air purifiers may use 'HEPA-like' or 'HEPA-type' filters, which may not meet the same rigorous standards. Ensure the product explicitly states it uses a 'true HEPA' filter. Also, consider if the filter is combined with other filtration layers (e.g., activated carbon for odor removal). The DBFIT AP300 utilizes a HEPA filter; confirming it's a 'true HEPA' filter based on specifications is advisable.

Rating Comments

The HEPASilent dual filtration technology removes 99.97% of airborne particles down to 0.1 microns, ensuring high-quality air purification. It captures dust, pollen, pet dander, and even viruses, making it ideal for allergy sufferers.

Pre-filter and Filter Replacement

4.3

Rating Criteria Explanation

A pre-filter is usually the first line of defense in an air purifier, capturing larger particles like dust and pet hair. This extends the life of the more expensive HEPA filter. Look for a model with a washable pre-filter for easy maintenance. Filter replacement is an ongoing cost, so consider the cost and availability of replacement HEPA filters. Some manufacturers offer subscription services for filter replacements. Check how often the filters need to be replaced (usually every 6-12 months, depending on usage and air quality) and factor that into the overall cost. The DBFIT AP300 features a washable filter which will reduce your long term costs, and should be considered a major benefit.

Rating Comments

The washable pre-filter extends the life of the main filter, and the RealTrack algorithm accurately calculates filter life. This reduces long-term costs and ensures optimal performance, making maintenance straightforward.

Activated Carbon Filter (Odor Removal)

4.0

Rating Criteria Explanation

While HEPA filters excel at removing particulate matter, they don't address odors, gases, or volatile organic compounds (VOCs). An activated carbon filter is essential for removing these pollutants. The thickness and quality of the carbon filter significantly impact its effectiveness. Some air purifiers have a separate activated carbon filter, while others combine it with the HEPA filter. If you are sensitive to odors or live in an area with high levels of air pollution, prioritizing an air purifier with a substantial activated carbon filter is important. Ensure the carbon filter is replaceable as it will become saturated over time. Examine the product details to see if the DBFIT AP300 has one or if that needs to be supplemented with another filter.

Rating Comments

The activated carbon filter effectively removes light household odors from smoking, pets, and cooking. This makes it suitable for households with pets or those sensitive to smells, ensuring a fresher indoor environment.

Noise Level

4.7

Rating Criteria Explanation

The noise level of an air purifier is a significant consideration, especially if you plan to use it in a bedroom or office. Air purifiers have different fan speeds, and the noise level increases with higher speeds. Look for a model with a low noise level (measured in decibels, dB) on its lowest setting. Some air purifiers have a 'sleep mode' that operates at an even quieter level. Consider your sensitivity to noise and the intended use of the air purifier when evaluating noise levels. If possible, read reviews to get an idea of the actual noise level in real-world use. The DBFIT AP300 may not have a published noise level so reviews are important.

Rating Comments

Operating at a low noise level (23-50dB), the Blue Pure 311i Max is suitable for bedrooms and quiet environments. Its quiet operation ensures undisturbed rest and relaxation, enhancing user comfort.

Air Quality Sensor and Auto Mode

4.6

Rating Criteria Explanation

Many modern air purifiers come equipped with an air quality sensor that detects the level of pollutants in the air. This sensor allows the air purifier to automatically adjust the fan speed based on the air quality, optimizing performance and energy consumption. Look for a model with a reliable and accurate air quality sensor. The 'auto mode' is a convenient feature that allows the air purifier to run efficiently without constant manual adjustments. The DBFIT AP300 includes a PM2.5 display and an air quality sensor, which is a notable feature for automatic operation.

Rating Comments

The smart app features scheduling, air quality monitoring, and Clean Air ETA. The auto mode adjusts fan speed based on air quality, optimizing performance and energy consumption, providing convenience and efficiency.

Manufacturer Reliability and Warranty

4.0

Rating Criteria Explanation

The reliability of the manufacturer and the warranty offered are crucial indicators of product quality and durability. Research the manufacturer's reputation for producing reliable air purifiers. Look for customer reviews and ratings to get an idea of their experience with the brand. A longer warranty period (e.g., 2 years or more) indicates that the manufacturer has confidence in their product. Also, check the warranty terms and conditions to understand what is covered. A good warranty should cover defects in materials and workmanship. Having readily available customer support is also a plus. Unknown reliability may be a factor for DBFIT and should be investigated before purchasing.

Rating Comments

Blueair has been an industry leader since 1996, indicating good reliability. The product is AHAM Verifide, ensuring it meets safety and performance standards, providing confidence in its quality and durability.

Cost Performance

4.1

Rating Criteria Explanation

Cost performance is the final balancing act. While it's tempting to go for the cheapest option, consider the long-term costs. Factor in the cost of replacement filters, electricity consumption, and the potential lifespan of the air purifier. A slightly more expensive model with better filter life, lower energy consumption, and a longer warranty might be a better value in the long run. Compare the features and performance of different models within your budget and choose the one that offers the best balance of price and performance. Assess whether the DBFIT AP300's price aligns with its features and coverage area compared to other available options.

Rating Comments

The price aligns well with its features and coverage area, offering good value for money. Its smart features, quiet operation, and effective filtration make it a worthwhile investment for improving indoor air quality.

Brand & Manufacturer Details

BLUEAIR

Since 1996, Blueair has been an industry leader in performance, innovation, and intelligent design–creating best-in-class products that support better health with every breath.

Considerations

Ensure proper filter installation
Regularly clean pre-filter
Monitor filter life via app

Recommended For

Homeowners with medium-sized rooms
Pet owners
Individuals with allergies

Not Recommended For

Those with very large spaces
Individuals on a very tight budget
Those needing advanced air quality sensors

Suitable For

Bedrooms
Living rooms
Offices

Not Suitable For

Cars
Outdoor use
Industrial environments

Frequently Asked Questions (FAQ)

Q.I'm concerned about the noise level. Is it really quiet enough for a bedroom?

A.Yes, the Blue Pure 311i Max is Quiet Mark certified, operating between 23-50dB. Staff confirmations mention it's quieter than a whisper on low and comparable to an air conditioner on higher settings. One staff member, an audio engineer, even uses it in their studio without issue.

Q.I'm concerned about the noise level. Is it really quiet enough for a bedroom?

Q.How effective is it at removing odors, especially from cooking or pets?

A.The Blue Pure 311i Max includes a carbon filter designed to trap light household odors from smoking, pets, and cooking. Staff confirmations highlight its effectiveness in quickly eliminating odors. One staff member noted the unit automatically increased fan speed when cooking sausage and onions until the odor was gone.

Q.How effective is it at removing odors, especially from cooking or pets?

Q.I have allergies. Will this air purifier help with pollen and dust?

A.Yes, the Blue Pure 311i Max removes at least 99.97% of airborne particles down to 0.1 microns, including pollen, dust, pet dander, and mold allergens. Its HEPASilent technology is designed to clean air faster and more quietly than traditional HEPA filters. One staff member with allergies in a desert environment experienced symptom relief within an hour of using the purifier.

Q.I have allergies. Will this air purifier help with pollen and dust?

Q.How often do I need to replace the filter, and how will I know when it's time?

A.The filter life is estimated to be up to 9 months. The Blue Pure 311i Max uses a RealTrack algorithm that considers fan speed, usage time, and pollution levels to accurately determine filter life. The Blueair app provides filter tracking and will notify you when a replacement is needed. A staff confirmation noted that even with constant use, the filter lasted longer than the advertised 6 months.

Q.How often do I need to replace the filter, and how will I know when it's time?

Q.Is it easy to control and monitor the air quality?

A.Yes, the Blue Pure 311i Max has an intuitive display, a 5-color AQI indicator, and a simple two-button design for controlling fan speed, including night mode, auto mode, brightness, and child lock. The Blueair app allows for scheduling, air quality monitoring, and Clean Air ETA. It's also compatible with Alexa voice control. Staff confirmations praise the app's functionality and the unit's ability to automatically adjust based on air quality.

Q.Is it easy to control and monitor the air quality?

SHOPSTAFF Rating Ranking

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$359(incl. tax)Amazon price as of 2025-09-02

Large room air purifier with 7-stage filtration, smart features, and doubles as a table with Swedish-inspired design.

Applicable Area	3385 sq ft	CADR (Smoke)	- CFM
CADR (Dust)	- CFM	CADR (Pollen)	- CFM
Filter Type	Activated Carbon	Number of Fan Speeds	-
Noise Level (Min)	- dB	Noise Level (Max)	35 dB
Power Consumption	4 W	Smart Features	Yes

Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function

4.6Overall Rating

4.8Coverage Area (CADR)

4.7HEPA Filter Quality and Type

4.0Pre-filter and Filter Replacement

4.6Activated Carbon Filter (Odor Removal)

4.7Noise Level

4.9Air Quality Sensor and Auto Mode

4.5Manufacturer Reliability and Warranty

4.2Cost Performance

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$366(incl. tax)Amazon price as of 2025-09-02

Smart air purifier with HEPA filter, auto mode, and filter alerts, designed for spaces up to 1,560 sq. ft.

Applicable Area	1560 sq ft	CADR (Smoke)	- CFM
CADR (Dust)	- CFM	CADR (Pollen)	- CFM
Filter Type	True HEPA, Active Carbon Filter, Pre-Filter	Number of Fan Speeds	-
Noise Level (Min)	22 dB	Noise Level (Max)	52 dB
Power Consumption	66 W	Smart Features	No

Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function

4.5Overall Rating

4.5Coverage Area (CADR)

4.7HEPA Filter Quality and Type

4.3Pre-filter and Filter Replacement

4.5Activated Carbon Filter (Odor Removal)

4.6Noise Level

4.8Air Quality Sensor and Auto Mode

4.3Manufacturer Reliability and Warranty

4.2Cost Performance

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$179(incl. tax)Amazon price as of 2025-09-02

WINIX 5510 Air Purifier for Home Large Room Up to 1881 Ft², True HEPA, High Deodorization Carbon Filter.

Applicable Area	1881 sq ft	CADR (Smoke)	- CFM
CADR (Dust)	- CFM	CADR (Pollen)	- CFM
Filter Type	HEPA, Carbon	Number of Fan Speeds	-
Noise Level (Min)	27 dB	Noise Level (Max)	- dB
Power Consumption	65 W	Smart Features	Amazon Alexa, Google Assistant

Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function

4.5Overall Rating

4.5Coverage Area (CADR)

4.7HEPA Filter Quality and Type

4.3Pre-filter and Filter Replacement

4.5Activated Carbon Filter (Odor Removal)

4.6Noise Level

4.8Air Quality Sensor and Auto Mode

4.0Manufacturer Reliability and Warranty

4.3Cost Performance

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Winix

5520 Air Purifier

$189(incl. tax)Amazon price as of 2025-09-02

WINIX 5520 Air Purifier for large rooms up to 1882 Ft² with air quality monitor and true HEPA filter.

Applicable Area	1881 sq ft	CADR (Smoke)	- CFM
CADR (Dust)	- CFM	CADR (Pollen)	- CFM
Filter Type	HEPA, Carbon	Number of Fan Speeds	-
Noise Level (Min)	27 dB	Noise Level (Max)	- dB
Power Consumption	50 W	Smart Features	Wifi

Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function

4.5Overall Rating

4.5Coverage Area (CADR)

4.7HEPA Filter Quality and Type

4.3Pre-filter and Filter Replacement

4.5Activated Carbon Filter (Odor Removal)

4.6Noise Level

4.8Air Quality Sensor and Auto Mode

4.0Manufacturer Reliability and Warranty

4.2Cost Performance

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LEVOIT

Air Purifiers Vital 200S-P

$159(incl. tax)Amazon price as of 2025-09-02

LEVOIT Air Purifier for large rooms up to 1875 sq ft with washable pre-filter and air quality monitor.

Applicable Area	1875 sq ft	CADR (Smoke)	250 CFM
CADR (Dust)	254 CFM	CADR (Pollen)	289 CFM
Filter Type	3-Stage Filter	Number of Fan Speeds	-
Noise Level (Min)	- dB	Noise Level (Max)	- dB
Power Consumption	- W	Smart Features	App

Odor Sensor FunctionDust Sensor FunctionPM2.5 Display FunctionFilter Replacement Indicator FunctionChild Lock FunctionSleep Mode Function

4.4Overall Rating

4.3Coverage Area (CADR)

4.5HEPA Filter Quality and Type

4.3Pre-filter and Filter Replacement

4.3Activated Carbon Filter (Odor Removal)

4.5Noise Level

4.7Air Quality Sensor and Auto Mode

4.0Manufacturer Reliability and Warranty

4.3Cost Performance

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See more [2025 Edition] 100 Best HEPA Air Purifiers! Selection Guide and Latest Models Introduction comparisons

BLUEAIR Blue Pure 311i Max

Product Overview

Product Specifications

Size & Weight

Features

SHOPSTAFF Rating Score

Brand & Manufacturer Details

Considerations

Recommended For

Not Recommended For

Suitable For

Not Suitable For