VEVOR Filter Fume Extractor Pure Air Fume Extractor 150W with 3 Stage FiltersProduct Features 99. 91% Purification Rate The 150W DC motor of the fume extractor creates a powerful 165 CFM airflow to exhaust and purify the air. After using, the smoke purification rate is as high as 99. 91%, allowing you to breathe fresh air again. 3 Stage Filters The solder fume extractor has 3 stage filters for high quality filtration. A cotton filter, central HEPA filter, and an activated carbon filter absorb all smoke, dust, and harmful gases