Blueair - Blue Pure 511i Max 1138 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray
Customers are saying
Customers frequently mention that this product is exceptionally quiet and highly effective at improving overall air quality. Users are also pleased with its reliable performance, user-friendly design, and the longevity of its filters. Additionally, many appreciate the convenient size, which makes it a perfect fit for bedrooms and nurseries.
Powerful Air Cleaning for Small Rooms
The Blue Pure 511i Max quickly refreshes indoor air in bedrooms, nurseries, home offices, and apartments. It cleans 237 csq ft in about 12.5 minutes and up to 1,138 sq ft in one hour.
Removes Dust, Smoke, Pet Dander & Allergens
Blueair’s HEPASilent dual filtration technology captures 99.97% of airborne particles down to 0.1 microns, including dust, pollen, pet dander, mold particles, and smoke.
Quiet Air Purifier for Bedrooms
Designed for sleep-friendly performance, the purifier operates as quietly as 19 dB, making it ideal for bedrooms, nurseries, and dorm rooms..
Smart Air Purifier with App Control
Built-in air quality sensors automatically adjust fan speed when pollution levels rise. Use the Blueair mobile app to monitor air quality, control settings, and receive filter replacement reminders.
Compact Design for Modern Homes
The Blue Pure 511i Max features a compact Scandinavian-inspired design with 360° air intake, allowing it to fit easily in small rooms while efficiently circulating clean air.
Let’s Clear the Air Easier
Intuitive display, 5-color AQI, and simple two-button design make it easy to control fan speed 1 – 3 including night mode, auto mode and child lock.
Performance Comparison Disclaimer
*Comparing pollen CADR on high fan speed (Blue Pure 411a Max & 411i Max vs. Blue 411 Auto), other units may vary. Based on AHAM maximum allowable certified rating which may vary from the AHAM seal claimed valued. Noise refers to the dB(A) difference in acoustic power.
Filtration Efficiency Disclaimer
**When similar CADR was measured, Blueair models with mechanical and electrostatic filtration achieved less noise with less energy than same models with only H13 HEPA mechanical filtration.
Test Results Disclaimer
***Tested PM 2.5 (0.1 - 2.5 microns) up to 90min in a 30m3 room. Tested to remove min. 99.9% of S. aureus, K. pneumoniae, P. aeruginosa, MS2, E.Coli, H1N1, A.Niger.
- Recommended Room Size1138 square feetApp CompatibleYesWireless ConnectivityWi-Fi, Wi-FiAir Quality Indicator Light(s)YesFilter TypeActivated carbonClean Air Delivery Rate (CADR)125 cubic feet per minute
Reviews
Rating 4.8 out of 5 stars with 258 reviews
- Noise Level (106)
- Air Quality (73)
- Overall Performance (73)
- Ease of Use (23)
- Design (20)
Customer Images
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
- Shark - NeverChange Air Purifier MAX, 5-Year Filter Life, 1400 sq. Ft - White$299.99The price was $399.99
Compare similar products
The Blueair Blue Pure 511i Max smart air purifier is designed for bedrooms, small rooms, and apartments that need efficient air cleaning. Using advanced HEPASilent filtration technology, it captures 99.97% of airborne particles including dust, pollen, pet dander, and smoke, helping improve indoor air quality. Capable of cleaning up to 1,138 square feet in one hour, the Blue Pure 511i Max is ideal for bedrooms, nurseries, home offices, and homes with pets or allergy concerns. Experience powerful air purification in a compact design with the Blueair Blue Pure 511i Max smart air purifier, engineered for bedrooms and small living spaces. The purifier combines mechanical and electrostatic filtration through Blueair’s proprietary HEPASilent technology, capturing airborne pollutants such as dust, pollen, pet dander, smoke particles, and mold spores while maintaining quiet operation. This advanced filtration captures particles down to 0.1 microns, helping keep indoor air cleaner and fresher. Designed for small spaces, the Blue Pure 511i Max refreshes indoor air quickly, cleaning 237 square feet in about 12.5 minutes or up to 1,138 square feet in one hour. This makes it ideal for bedrooms, dorm rooms, apartments, home offices, and nurseries. Smart sensors monitor air quality and automatically adjust fan speed when pollution levels rise. Through the Blueair mobile app, you can check air quality levels, schedule operation, and receive filter replacement reminders. With quiet performance as low as 19 dB and a compact Scandinavian design, the Blue Pure 511i Max blends seamlessly into modern homes while delivering efficient air purification. Whether you're managing pet dander, seasonal allergies, cooking odors, or everyday dust, the Blue Pure 511i Max helps create a cleaner and more comfortable indoor environment.
Let’s clear the air with Blueair. Blue Pure 311i Max HEPASilent smart air purifier quickly cleans 387 sq. ft medium room in about 12.5 min, up to 929 sq. ft medium space in 30 min, and 1,800 sq.ft in 1 hour on high. This air purifier has a Clean Air Delivery Rate (CADR) of 250 for fine smoke particles, dust and pollen. Energy Star Most Efficient 2023.
Refresh your home’s air with the Levoit Core 300-P Air Purifier. The Pre-Filter removes large airborne particles like dust and hair, the Main Filter captures at least 99.97% of airborne particles down to 0.3 microns, and the Activated Carbon Filter removes smoke, odors, fumes and VOCs (Volatile Organic Compounds). This air purifier cleans the air in a room up to 1,073 ft² with noise levels as low as 22dB, helping you breathe cleaner air while maintaining a peaceful home.
Let’s clear the air with Blueair. Blue Pure 211i Max HEPASilent smart air purifier quickly cleans 635 sq. ft extra-large room in about 12.5 min or up to 1,524 sq. ft XL space in 30 min & 3,000 sq. ft in 1 hour, on high. This air purifier has a Clean Air Delivery Rate (CADR) of 410 for fine smoke particles, dust and pollen.
| Pros for Blueair - Blue Pure 511i Max 1138 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray | |||
|---|---|---|---|
| Noise Level, Air Quality, Overall Performance, Design, Ease of Use | Noise Level, Air Quality, Overall Performance, Design, Ease of use | Air Quality, Noise Level, Overall Performance, Ease of use, Size | There were no pros for this product— |
| Cons for Blueair - Blue Pure 511i Max 1138 sq ft HEPASilent Small Room Bedroom Air Purifier - White/Gray | |||
| There were no cons for this product— | WiFi Connectivity | Filter Life, Coverage Area | There were no cons for this product— |
Specs
Is this product HEPA certified?
Answered by Blueair Support TeamThank you for your interest in Blueair! Blueair filters are not True HEPA. Our air purifiers use HEPASilent™ technology which combines electrostatic and mechanical filtration to capture 99.97% of airborne particles down to 0.1 microns. Because of this unique technology, our filters are less dense than a True HEPA version, while still achieving a high clean air delivery rate (CADR) which also allows them to be quieter and energy-efficient. For more information, visit our website here: https://www.blueair.com/us/blueair-performance.html
Does the filter that comes with it work well during Wildfire Season?
Answered by Blueair Support TeamThank you for your interest in Blueair! Yes, the Blue 511i Pure Max removes 99.97% of airborne particles down to 0.1 microns, including fine smoke particles and its activated carbon filter helps reduce odors and gases from smoke. It's also quiet and energy-efficient, making it ideal for running continuously during wildfire events. For more information, please visit: https://www.blueair.com/blogs/news/wildfire-smoke-and-air-purifiers
Does this remove cigarette smoke
Answered by Blueair Support TeamThank you for your question! Our Blue Pure Max air purifiers remove 99.97% of airborne particles down to 0.1 microns, including smoke particles.
What type of filter does the air purifier use?
This air purifier uses an activated carbon filter.
This question and answer was generated by AI based on customer and product data.Is the air purifier compatible with a mobile app?
This air purifier is compatible with a mobile app.
This question and answer was generated by AI based on customer and product data.
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