$39.99

Blue Pure 311 Auto Particle + Carbon Filter

Compatible with 311 Auto

Save 15% with a subscription

$39.99
Blueair
Blueair
A winning combination

The combination particle + carbon filter removes annoying household odors, chemicals, and gases, as well as 99.97% of airborne particles, like pollen, dust, viruses, and more with Blueair’s HEPASilent™ filtration technology.

Genuine performance, superior quality

Unlike generic look-a-likes, genuine Blueair replacement filters are specifically designed to maintain superior performance over time and ensures your warranty remains intact.

Blueair
Blueair
Replacement is easy

When it's time to replace your filter (about every six months), start by unplugging your air purifier. On the 411/MINI model, turn the top portion of the air purifier counterclockwise to remove. On the 411+ model, turn the air purifier upside down and turn the cap counterclockwise to remove. Take out the old filter and vacuum away any dust on the inside. Insert the replacement filter, replace the top/cap and plug back in. Easy.

Features
Blueair
Less dense filters make the difference

Our unique HEPASilent™ filtration technology allows our filters to be less dense. Less dense filters require less air pressure— resulting in quieter and more energy efficient air purifiers.

Blueair
Remove allergens & germs

The particle filter layer helps to minimize the airborne particles that can trigger allergy symptoms, including pollen, dust, mold spores, pet dander, viruses, bacteria, and fine smoke particles.

Blueair
Remove household odors

A layer of activated coconut carbon absorbs light gases, including volatile organic compounds (VOC), smog, chemicals, and annoying household odors from pets, smoke, and cooking.

Blueair
Recyclable

This filter is recyclable, so the only thing you're adding back into the environment is clean air. Please check your local recycling facilities for availability​.

Blueair
6-month filter life

To maintain optimum performance, we recommend changing your filter about once every 6-months when used 24 hours a day.

Blueair
Traps particles for good

The filter structure traps even the smallest particles and resists clogging to maintain maximum airflow.

Specifications
  • Particle filter + Carbon sheet. Activated coconut shell carbon. Non-woven gradient Polypropelyne fibers. Free of chemicals and binders. Fiber shedding resistance.
  • 10.2 x 10.2 x 12.8 in
  • 0.75lbs
  • PP
  • Plastic. Check your local recycling requirements for carbon.
  • 6 months (4,380 hours) when used 24 hours a day
  • 1
FAQ
What Blueair models are compatible with this filter?

This filter is compatible with the Blue Pure 311 Auto model.

What is a filter subscription?

Purchasing a filter subscription saves you 15% on all future replacement filter orders + free shipping and extends your limited 1-year product warranty to a lifetime warranty for as long as you remain a subscriber. At the time of purchase, the subscription will automatically schedule filter deliveries at the recommended six months. You can always adjust this timeframe from the 'My Account' section.


Learn more about filter subscriptions

Are Blueair filters HEPA?

No, Blueair filters are less dense than traditional HEPA filters, allowing our air purifiers to be quieter and more energy-efficient. Instead of HEPA filters, we use a combination of electrostatic and mechanical filtration that we call HEPASilent™ technology to achieve the same level of filtration efficiency - with less energy and noise.

How much carbon by weight is in this filter?

Often, the weight of carbon in a filter is considered when evaluating an air purifier’s ability to remove smoke-related pollutants from the air. While the presence of activated carbon is important to neutralizing odor, the efficiency and airflow of the air purifier should also be considered. This is because smoke from tobacco, wildfires and other sources contains fine particles, harmful chemicals and volatile organic compounds (VOC), as well as annoying odors.