![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw6197b22e/Innovation%20Images/411auto_prefilter_darkgrey_herofeature.png)
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwc925300d/Innovation%20Images/411auto_prefilter_blue_herofeature2.png?sw=368)
The fabric pre-filter extends the life of the primary filter, catching large airborne particles such as dust, lint, pollen, and pet hair. And the color can be customized to fit your space.
![Blueair Image Blueair Image](https://www.blueair.com/dw/image/v2/AASF_PRD/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw76f2f7da/Innovation%20Images/411auto_prefilter_darkgrey_feature1.png?sw=468)
Surprise with a pop of color, or blend in with your room decor with five available color options; Arctic Trail, Winter Reed, Archipelago Sand, Aurora Light, and Night Waves.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwfc4f79f3/2023%20Icons/Icon_Mold.png)
While this pre-filter is designed to be compatible with the Blue Pure 311 Auto.
![Blueair Filter Blueair Filter](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dwfc4f79f3/2023%20Icons/Icon_Mold.png)
For quick cleaning, use the brush attachment on your vacuum to clean the exterior of the fabric pre-filter of visible dust and dirt between washes.
![Blueair Image Blueair Image](https://www.blueair.com/on/demandware.static/-/Library-Sites-blueair-ca-content-library/default/dw478ffea1/2023%20Icons/Icon_Dust.png)
When the pre-filter requires a deeper clean, wash on a gentle, low-temperature cycle in a washing machine. Hang to dry.
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Filter TypeFabric pre-filter 100% polyester, Stretch panel 94% polyamide 6% spandex
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Dimensions(HxWxD)14.0 x 0.08 x 15.2 in
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Product weight0.15lbs
This pre-filter is compatible with the Blue Pure 311 Auto model.
This item includes one replacement pre-filter fabric.