🌬️ Breathe Fresh, Live Fresh!
The 121 Replacement Filter is a high-performance HEPA and activated carbon filter designed for the Blueair Blue Pure 121 Air Purifier. It effectively removes 99.97% of airborne particles as small as 0.1 μm, neutralizes household odors, and ensures seamless compatibility with your air purifier while maintaining warranty integrity.
| Brand Name | Mbetter |
| Model Info | 1 |
| Item Weight | 3.39 pounds |
| Product Dimensions | 21 x 20 x 3 inches |
| Item model number | 1 |
| Part Number | 1 |
| Color | 1 PACK |
| Compatible Device | Air Purifier |
| Material Type | activated carbon mesh |
| Batteries Included? | No |
| Batteries Required? | No |
A**N
No smell, good quality
I brought 121 blue air filter from another seller for one of our 121 blue air unit that one smells weird even after one month of use. This filter doesn’t smell and at least 30$ cheaper in price. Worth the price, good quality.
L**S
Great!
These air filters work great, I've noticed a huge difference in the air quality in my home. Will buy again!
C**E
Fits perfectly
We love our Blue air filter. This replacement fits as well as the original and for a lot less money.
T**R
Same as the original
Same thing the only thing I miss from the original was like a crisp smell I first smelt when I turned on my new machine with the original filter. So I miss that crisp new filter original smell that it made my room smell. The air felt very light weight and fresh. Hard to explain but I am going to buy the original to see if I can get that new original crisp smell back if not I’ll keep using these ones because they fit and they are literally the exact same as the original ones for the BLUE air purifier machine because they’re cheaper which they definitely need to be cheaper tho 60 dollars for a filter let alone 100 is ridiculous for something we have to eventually throw away
G**D
They work
They seem to work just as well as the ones that came with the purifier. When I installed the first one the white light would not come on but I checked the questions on Amazon and one suggestion was to hold the button for up to 40 seconds and the light would work. Yep, that was it. Not even 40 seconds but by golly that fixed it. So I will order more when needed.
A**A
Works well in the Blueair 121
Easy installation. Fit & synch'ed on the Blueair 121 unit. Lower rating on price only because we consider all the brands to be over-priced, though this unit does cost less than others. Odor control not an issue, so no rating there. Overall very pleased with compatibility & performance.
P**I
Not the same! Doesn’t last as long!
I was very disappointed to see the red light turn on after only 2 months. Not worth the price. The return window closed a week ago and now the red light comes on!
N**Z
As good as OEM
Great value and works just as well as the oem filter from BlueAir.
Trustpilot
1 month ago
1 month ago