2 Pack - 45i Replacement Filter - for Breathesmart Flex Bh400 and Breathesmart 45i Air Purifier - H13 Grade True Hepa Filter - Part # B4-Fresh - B4-Pure - FL40 - FL40-pure

Engineered for compatibility: designed to fit perfectly with your "BreatheSmart 45i" and "BreatheSmart flex" air purifiers, part # B4-fresh - B4-pure - FL40-pure (old part # FL40-silver-carbon) | High-efficiency filtration: replacement H13 grade true hepa filter for "BreatheSmart 45i" air purifier effectively traps 99.99% airborne particles as small as 0.1 microns, including dust and common pollutants | Enhances air quality: reduces volatile organic compounds, tobacco smoke, and common household odors, contributing to a cleaner, fresher environment in your home | Extended lifespan & optimal replacement intervals: true hepa filter is built for durability and should be replaced every 9-12 months for optimal performance, while the carbon prefilter should be changed every 4-6 months | Ready to help: if you have any questions about our replacement filter compatible with "BreatheSmart 45i" and "BreatheSmart flex Bh400", don't hesitate to reach out