Blueair Blue Pure 311i Max HEPA Air Purifier for Medium Rooms up to 1858 sq. ft.

A: yes! My app offloaded itself a long time ago. This puifier works fine without a phone, there are buttons on top to operate it.

A: Yes, I just bought one and I’m using it without the app or phone.

A: When using this air purifier, may I also use a ceiling fan to circulate the air?

A: Thank you for your interest in Blueair! While the Blue Pure Max 311i Max air purifier id smart-enabled, it features an intuitive display with a simple two-button design for easy control of fan speeds (1-3), night mode, auto, brightness, and child lock. It also includes a clear 5-color AQI sensor to easily display your air quality levels.

A: Yes it's Blue. Think it's smell like ionizing.

A: Thank you for your interest in Blueiar! Our Blue Pure 311i Max with HEPASilent™ technology combines mechanical and electrostatic filtration to capture and remove indoor air pollutants. It uses an ionizer to electrostatically charge particles at a low current, boosting filter efficiency and achieving a quiet, energy-efficient Clean Air Delivery Rate (CADR). Blueair products meet CARB standards and are third-party certified to Intertek's Zero Ozone standards. Find out more on our website: https://www.blueair.com/us/air-purifiers-and-ozone.html

A: It looks like a Heather grey.

A: Thank you for your interest in Blueair! The Blue Pure 311i Max comes in the pre-filter color, Stockholm Fog.

A: It is very quiet. When it’s on the auto setting, I cannot hear it at all. If I turn up the fan to level 2 or 3 then it is noticeable but just sounds like a small fan.

A: Thank you for your interest in Blueair! he Blue Pure 311i Max is Quiet Mark certified, making it one of the quietest and least intrusive air purifiers available. Quiet Mark testing labs replicate real-life environments (rather than controlled lab settings) to evaluate both sound levels and sound quality, ensuring that the pitch of the sound is pleasant and unobtrusive. The Blue Pure 311i Max operates at 23 dB(A) on the lowest setting and is never louder than 50 dB(A).

A: Thank you for your question! You can reset the filter light indicator on the Blue Pure 311i Max air purifier by pressing and holding the fan speed button for about 15 seconds, until all the LEDs on the interface light up and the filter light turns off. For more details and a helpful video on resetting the filter indicator on your air purifier, visit us here: https://www.blueair.com/blogs/blue-pure-max/how-do-i-reset-the-red-light-filter-light-indicator-on-my-blue-pure-max-air-purifier

A: Thank you for your question! The Blue Pure 311i Max is perfect for medium rooms up to 525 sq. ft., giving you 4.8 air changes per hour, AHAM's recommended standard for optimal clean air. For a larger space, the Blue Pure 311i+ Max covers up to 650 sq. ft., and the Blue Pure 211i Max is ideal for extra-large spaces up to 674 sq. ft. For more information on finding the best fit for your space, take our quiz here: https://www.blueair.com/pages/guided-selling

A: Thank you for your interest in Blueair! Yes, our Blue Pure Max filters including the Particle & Carbon Filter, SmokeBlock Filter, and AllergenBlock filters, contain activated carbon/charcoal. For more information regarding the Blue Pure 311i Max filter, visit us here: https://www.blueair.com/products/f3max-replacement-pac-filter-for-311i-max-1

A: Thank you for your question! The Blue Pure Max air purifiers feature a dual filtration system. The main filter is a particle + carbon filter, designed to effectively remove airborne particles, as well as reduce gases and odors. The washable fabric pre-filter captures larger particles such as dust and pet hair, helping to extend the life of the main filter.

A: Thank you for your question! The F3Max replacement filter is compatible with the Blue Pure 311i Max air purifier. You can purchase it at Target here:https://www.target.com/p/blueair-f3max-replacement-pac-filter-for-311i-max/-/A-88788408#lnk=sametab

A: Thank you for your question! The F3Max replacement filter is compatible with the Blue Pure 311i Max air purifier. You can purchase it from Target using this link: https://www.target.com/p/blueair-f3max-replacement-pac-filter-for-311i-max/-/A-88788408?sid=&TCID=PDS-22806998560&gclsrc=aw.ds&gad_source=1&gad_campaignid=22807003642&gbraid=0AAAAAD-5dfZXdyQG_NEZq7Bo_8oovT9HA&gclid=Cj0KCQiA1JLLBhCDARIsAAVfy7jWWWEwHFWTapp_I_K1MH7FZkFRXyJ3ceaDq6RXu7jimlj3RbstcdEaAt3eEALw_wcB