
Blueair Pre-filter in Archipelago Sand color for the Blue Pure 311 Auto air purifier. Form meets function in Blue Pure 311 Auto's colorful pre-filters. The fabric allows you to customize the color to match your style, as well as extend the life of the primary filter, catching large airborne particles such as dust, lint, pollen, and pet hair. Vacuum the exterior of the fabric pre-filter to remove visible dust and dirt as often as you'd like. Removable, washable, and reusable the pre-filter is designed to be used again and again. When it requires a deeper clean, throw the fabric in the washing machine on a gentle, low-temperature cycle. Hang to dry. A hidden compartment in the fabric pre-filter keeps the power cord hidden out of sight. Available in five pre-filter colors inspired by natural Scandinavian landscapes; Arctic Trail (gray), Winter Reed (light gray), Archipelago Sand (pink), Aurora Light (green), and Night Waves (navy). Pre-filter in Arctic Trail color comes standard with air purifier.
Q: Can this help with odors, such as smoke?
A: Hi, Blueair Blue Purifiers are designed to filter pollutants and particles and also does well with light smoke and cooking odors. For stronger odor removal we suggest models with activated-carbon filters such as the Blue Pure 211+ and 211+ Auto.
Q: Do the purifier needs to be connected to the wall power outlet or to the USB?
A: The Blueair 311 has a permanent power cord to be plugged into a wall power outlet. It will not work with a USB.
Q: Does it make loud noise while working?
A: Hi Nita, all of our air purifiers are "whisper silent" on their lowest setting. The 311 Auto has a sound level range of 23 dB(A) on its lowest setting to 53 dB(A) on its highest setting.
Q: what are the measurements of this?
A: Hi there, we do not provide the measurements of the pre-filters themselves. Your model is compatible with the pre-filter of the same name. For example, the 311 Auto model would be compatible with 311 Auto pre-filters.