2-Pack BF35 Replacement Filter Compatible with BF35 for BreatheSmart Classic Purifier, 2├2-in-1 Filters + 2├Carbon Pre-Filters

Compatible with--Compatible with BF35 for BreatheSmart Classic Purifier only. | 2-Stage Filtration--Including activated carbon pre-filter, true HP filter. | Activated Carbon Filter--High efficiency activated carbon can reduce odors, like smoke, pet odors. | Life Time--To keep your purifier performing at it's best, we recommend replacing your unit's air filter every 4-6 months. | Ensure Customer Satisfaction--We will guarantee to provide quality service.