PER FILTER SIZE: 235 * 334 * 69mm / 10 x 14 x 9 inches PACKAGE SIZE: 456 * 365 * 45mm (3 filters) Place OF ORIGIN: China Replace: 3-6 months Fit BLUEAIR smokestop 500/600 air purifiers filters Blueair 503 Smokestop Blueair 603 Smokestop Blueair 650E Smokestop Blueair 501 Smokestop Blueair 601 Smokestop Blueair 550E Digital Smokestop