45i Replacement Filter for Breathesmart Flex Bh400 45i Air Purifier High Efficiency Material With Activated Carbon Filter B4-Pure / Fl40

Replacement Part: Designed to fit models BH400, 45i, B4-Pure and FL400. Please verify your device model before ordering to confirm proper fit | 1 Pack Set: Package contains one replacement parts. Replace every 912 months based on your local air condition and usage frequency | Simple Installation: Tool-free direct replacement. Easy to take out and install. Aftermarket compatible part, not original equipment | Quality Checked: Each part undergoes quality inspection. Contact our customer support promptly if you receive damaged items or have fitment questions