211i Max Replacement Filter Compatible with Blue Pure 211i Max Air Purifiers, True H13 HEPA and Activated Carbon Filter, 2 Pack

["Compatible Filter Model: 211i Max Replacement Filter, 2 pack included for extended use and convenience","Precise Compatibility: Fully compatible with BLUEAIR Blue Pure 211i Max air purifier only, not compatible with 211+ and 211+ Auto air purifier models","Excellent filter can filter out 99% of dust, dust, common pollutants. Effectively intercept large particles, hair, animal fur, etc. Activated carbon can reduce chemicals, volatile organic compounds (VOCs), tobacco smoke and odors.","Maintenance Schedule: Replace the filter regularly to maintain optimal performance; clean monthly with a soft brush or gentle vacuum cleaner, and replace filter element every 2-3 months for comprehensive air quality protection","Easy Installation Process: Tool-free replacement design allows for convenient and simple filter changes; simply ensure the machine is off, open the shell, replace with new filter, and close the cover"]