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🌬️ Breathe smarter, live fresher—upgrade your air game now!
This 2-pack replacement filter set is designed exclusively for the Blueair Blue Pure 311 Auto air purifier, combining advanced HEPASilent filtration with activated carbon to capture 99.99% of airborne particles as small as 0.03 micrometers. Engineered for optimal performance over 9 months, these premium filters ensure cleaner, fresher air while offering excellent value and effortless installation.













| ASIN | B08V4PNGJD |
| Air Filter Construction | Pleated |
| Best Sellers Rank | #79,260 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #413 in Air Purifier Filters |
| Brand | Mbetter |
| Brand Name | Mbetter |
| Common Applications | Appliances |
| Compatible Air Purifier Models | Blueair Blue Pure 311 |
| Compatible Devices | Air Purifier |
| Customer Reviews | 4.2 out of 5 stars 562 Reviews |
| EU Spare Part Availability Duration | 9 Months |
| Included Components | No |
| Item Dimensions L x W x Thickness | 1"L x 1"W x 1"Th |
| Item Weight | 1.6 Pounds |
| MERV Rating | 13 |
| Manufacturer | Mbetter |
| Manufacturer Part Number | mb311 |
| Material | Activated Carbon Filter |
| Material Type | Activated Carbon Filter |
| Model Number | 311 Auto |
| Number of Items | 2 |
| Product Dimensions | 1"L x 1"W x 1"Th |
| Product Grade | new |
| UPC | 194467119419 |
| Unit Count | 2.0 Count |
| Warranty Description | No |
M**.
Highly recommended
There is a significant difference in my homes air quality with this product. Was recommended to me Air filters & I highly recommend it to anyone suffering from extra dust dirt pollution pollen & pets.
S**R
Easy to install filter
Perfect for my Blueair filter. It's easy to install. Works well!
R**N
Air filter refills
Have these on autoship and love them.
A**R
Did not fit!!
Bought these almost a year and our air filter is just now needing to be replaced. They don’t fit the air filter even though states fits our model. Should have made sure when we bought them. Should have looked at reviews which stated returned frequently for poor fit.
R**G
Good fit
This Chinese filter replacement for my Blueair 311 air cleaner seems to be well made and easy to install. I did not have the problems that other users have indicated.
L**B
Filters for mini air humidifier
It worked out fine. It was just about 2inces longer, but I fixed it. I had to trim it. The one I have is the correct model but it is little smaller. So that's why I had to cancel the subscription. I will order in 6 mos but with the smaller filter
K**T
Works great in hubbies smoke/game room, helps with dog dander.
Works great 2nd purchase
T**K
Worth every penny
I will never buy any other brand when it come to air purification in my home. Find the size that works for you and get your Blueair in your home yesterday!
M**8
Great replacement filter. Easy to change the filter
Fits my Blue Air 311 Auto air purifiers very well. The diameter is about 1 cm larger than the original filter but once the outer fabric is in place the fit is snug, no gaps. It was easy to remove the older filter and install the new one. No tools needed.
H**.
Fits perfect, extra filter for next time
Filter fits perfect. After 2 yrs of use, half hour per day to filter cat litter dust i changed filter. Slip off cloth cover. Pull off old paper filter and slip on new. Easy peasy
M**D
Good as the Original, Much More Affordable
Works as well as the original for a reasonable price.
Y**M
Not Compatible
Just returned these. They are not compatible with Blueair- blue pure 311 auto. Too big.
Trustpilot
3 weeks ago
2 weeks ago