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BLUEAIR Blue Pure 411 Auto, 411, 411+ Genuine Replacement Filter, Particle and Activated Carbon, fits Blue Pure 411 Auto, 411 and 411+ Air Purifiers
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AI Verdict
This is a 0.5-pound particle and activated carbon replacement filter for Blueair 411 series purifiers, designed for 6-month intervals.
This filter is a direct replacement for the Blueair 411 series, offering particle and activated carbon filtration for general air purification. Its 0.5-pound weight and 6-month lifespan are standard for this category. However, recent user complaints about reduced carbon filter density and increased pricing suggest a potential decline in value and performance, making it a less straightforward recommendation than before.
If you're concerned about carbon filter density or price, look for filters with a specified amount of activated carbon (e.g., grams) or consider Blueair's 'SmokeBlock' variant if strong odor removal is critical.
Regret Score™
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Issues discovered after purchase
Critically weak dimension
Amazon rating vs actual quality
Chance this product isn't for you
Pros
- Filters particulate pollutants down to 0.1 micron, including pollen, dirt, and pet dander.
- Activated carbon mesh layer targets gaseous pollutants like VOCs, tobacco smoke, and other household odors.
- Features a 360-degree air intake design, providing over 13 square feet of filter surface area.
- Designed for easy twist-and-change replacement, simplifying maintenance.
- Compatible with multiple Blue Pure models: 411, 411+, MINI, and 411 Auto air purifiers.
- Many users report it effectively improves air quality and removes odors.
Cons
- Some users report a noticeable decrease in the density of the carbon filter in recent purchases, making it appear less effective.
- The filter is not a 'true certified HEPA filter,' relying on a combination of electrostatic and mechanical filtration.
- Filter prices have reportedly increased, making ongoing maintenance more expensive for some users.
- Blueair's warranty for filters is only 30 days from the date of purchase.
Dimension Scores
The filter captures particles down to 0.1 microns and includes activated carbon for odors, but recent user reports of reduced carbon density suggest potential inconsistency.
The filter features a twist-and-change design for easy removal and replacement, and the purifier has a simple filter reset process.
While made with polypropylene filter media, recent user observations about a less dense carbon layer raise concerns about consistent manufacturing quality.
The 'HEPASilent' technology allows the purifier to use less dense filters, which generally translates to lower fan speeds and less energy consumption for a given airflow.
Best For
- Maintaining air quality in small rooms with a Blueair 411 series purifier.
- Reducing common household odors from cooking or pets.
- Filtering airborne particles like dust, pollen, and pet dander.
- Users who prefer genuine manufacturer replacement parts to ensure warranty compliance.
Not Recommended For
- Anyone seeking a 'true HEPA' certified filtration system.
- Budget-conscious users looking for the lowest long-term filter cost.
- Those who need to filter heavy smoke or severe chemical odors, as the standard carbon layer might be insufficient.
Watch Out For
- A Reddit user in December 2023 observed the carbon filter's density had significantly decreased, appearing 'practically transparent' compared to older versions.
- Filter prices have reportedly risen from around $22 to $24 plus $6 shipping for the base filter, a 36% increase for some users.
- The filter warranty is only 30 days, which is short for a consumable product designed for 6-month use.
- While Blueair claims 0.1 micron filtration, it's not a 'true certified HEPA filter,' which might be a concern for some.
Full Specifications
| UPC | 689122009858 |
| ASIN | B073SLDNJW |
| Brand | BLUEAIR |
| Import | Imported |
| Filter Type | Activated Carbon |
| Item Weight | 8.1 ounces |
| Filter Class | Activated Carbon Filter Class |
| Manufacturer | Blueair |
| Control Method | Remote |
| Controller Type | Remote Control |
| Number of pieces | 1 |
| Assembly required | No |
| Item model number | 100929 |
| Specification Met | AHAM Certified |
| Batteries required | No |
| Product Dimensions | 1.9"D x 8"W x 11.1"H |
| Included Components | 1 particle filter with carbon mesh |
| Warranty Description | No warranty |
| Particle Retention Size | 0.1 Micron |
| Is Discontinued By Manufacturer | No |
| Contaminant Filtration Capability | cigarette_smoke, odors, pet_dander, pollen, volatile_organic_compounds_(vocs) |
What Buyers Say
The most surprising finding is the recurring complaint about a significant reduction in the carbon filter's density in newer filters, with some users describing them as 'practically transparent' compared to older versions. Despite this, many users still find the filter effective for improving air quality and removing odors. The ease of installation is consistently praised, and the 6-month lifespan is generally met. However, the perceived quality drop and rising prices are a growing concern among the community.
“Man, these used to be so much better, the carbon layer is practically see-through now, feels like they cheaped out but the price keeps going up. Still works okay for dust but the smells aren't gone like they used to be.”
Common Praise
- Effectively reduces airborne particles like dust, pollen, and pet dander.
- Captures light household odors from cooking and pets.
- Simple twist-and-change installation process.
- Maintains the air purifier's quiet operation.
- Fits the Blue Pure 411 series purifiers perfectly.
Common Complaints
- Newer filters have a noticeably less dense carbon layer than older versions.
- Filter prices have increased, making them less competitive.
- The 30-day warranty for a 6-month consumable is too short.
- Some users question the effectiveness of the thinner carbon layer for odor removal.
Ownership Tips
- The filter's actual lifespan can vary based on air quality and purifier usage, sometimes lasting 6-9 months.
- The 'HEPASilent' technology means the filter isn't a traditional HEPA, but it still claims 0.1 micron filtration.
- Keeping an eye on the filter indicator light is crucial, as it signals when replacement is needed.
- Consider subscribing for filters if available, as some users mention discounts.
Frequently Asked Questions
What Blueair models is this filter compatible with?
This filter is compatible with Blue Pure 411, 411+, MINI, and 411 Auto air purifiers.
How often should I replace this filter?
Blueair recommends replacing the filter about every six months when the air purifier is used 24 hours a day.
Does this filter remove odors?
Yes, it includes an activated carbon mesh layer designed to trap light household odors from pets, cooking, smoke, and volatile organic compounds (VOCs).
How do I reset the filter replacement indicator on my air purifier?
After replacing the filter, press the center button on your air purifier down until the red light disappears, which usually takes 7-10 seconds, but can take up to 30 seconds depending on the model.
Is this a HEPA filter?
Blueair uses 'HEPASilent' technology, which combines electrostatic and mechanical filtration to capture particles down to 0.1 microns, but it is not a 'true certified HEPA filter.'
Buying Guide
When buying a replacement air filter, you're essentially buying the engine of your air purifier. The filter's design directly impacts what it can remove from your air and how efficiently it does it. For a combination filter like this, you're looking for both particle capture (like dust and allergens) and odor removal (from activated carbon). The density and amount of carbon are key for smells, while the filter media's structure determines particle capture. You also need to make sure it's the right fit for your specific air purifier model.
Particle Filtration (0.1 micron)
Activated Carbon
Filter Longevity (6 months)
Alternatives
If this filter doesn't meet your needs, look for replacement filters specifically advertising 'true HEPA' certification for maximum particle capture, or those with a higher specified amount of activated carbon (e.g., 'SmokeBlock' filters) for enhanced odor and VOC removal.



