General description The Blue Pure 411 Series SmokeBlock Replacement Filter is an essential tool for combating wildfire smoke and other harmful emissions. This filter is designed to provide added protection against toxic gases, smog, and odors, making it ideal for use during wildfire season. It is compatible with the entire Blue Pure 411 air purifier range, including the Blue Pure 411 Auto, Blue Pure 411, and Blue Pure 411+ models. Technical specifications Filter type: SmokeBlock replacement filter Compatible models: Blue Pure 411 Auto, Blue Pure 411, Blue Pure 411+ Filter lifespan: Average of 6 months Particle removal capability: Removes airborne particles down to 0.1 micrometer Material: Polypropylene Color: White Package contents: 2 x Air Filter Measurement allowed error: +/- 1-3 cm Usage Effectively filters dust, pollen, hair, and eliminates odors Utilizes a 360-degree air intake for optimized airflow and performance Traps household odors, smoke, chemicals, and volatile organic