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Blueair SMOKESTOP Filter for the 500/600 Series Air Purifiers.
Fits the 501, 503, 550E, 601, 603, and 650E systems.
This is the new and improved media filter and air flow will result in much better efficiency and performance!
These filters need to be changed every 6 months as required by Blueair to maintain peak performance and assure warranty compliance!
Measures 13" x 9.5" x 8.5".
Comes three per pack.
