The Bosch Air 4000 3-in-1 Replacement Filter comes with three-layer filtration system that helps keep your air clean, fresh, and free from unwanted odours.HEPA H13 filter - captures up to 99.95% of airborne particlesIntegrated carbon layer - absorbs and neutralises unwanted odoursPrefilter - traps larger dust and debris to extend the life of the main filterCompatible with Bosch Air 4000 air purifiers
