

🌬️ Elevate your air game — because your space deserves the freshest vibe.
The Filter-Monster Replacement Filter is a high-quality, certified polypropylene filter designed exclusively for Blueair 400 Series air purifiers. It effectively removes common airborne irritants like smoke, dust, pollen, pet dander, mold spores, and dust mites. With a recommended replacement every 6 months, it ensures sustained peak performance and cleaner indoor air, backed by over 330 positive reviews from discerning users.







| ASIN | B075NS2SDQ |
| Best Sellers Rank | #1,537,235 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #664 in HEPA Air Purifiers |
| Brand | Filter-Monster |
| Brand Name | Filter-Monster |
| Compatible Devices | Air Purifier |
| Customer Reviews | 4.6 out of 5 stars 333 Reviews |
| Global Trade Identification Number | 00855559004616 |
| Item Dimensions L x W x Thickness | 52.1L x 25.1W x 9.5Th Centimeters |
| Item Height | 3.75 Inches |
| Item Weight | 2.62 Pounds |
| Manufacturer | Filter-Monster |
| Material | Polypropylene |
| Material Type | Polypropylene |
| Model Number | BA400-FM1-AZ |
| Number of Items | 1 |
| Product Dimensions | 52.1L x 25.1W x 9.5Th Centimeters |
| Product Grade | New |
| UPC | 855559004616 |
| Unit Count | 1.0 Count |
T**D
Does a grand job
This is a fantastic filter
E**B
Great replacement filter
I’m happy with this filter. It’s fits perfect in my blue air 403. Air flow seems the same, but I usually keep on low. Super easy to replace. As some have mentioned, there was a slight plastic smell at first but it went away in a day of running it.
C**R
Super Extra
Je suis enchantée de votre produit , purificateur performant et je suis satisfaite . Céline Lussier
M**R
le type de filtreur est important
pas d'autres commentaires
G**$
Works great!
Works great and a lot less money than the factory brand.
Trustpilot
Hace 1 día
Hace 2 semanas