Spider Farmer 6" Inline Duct Fan with Speed Controller dupe Active Air Pre-Filter: This accessory

Active Air Pre-Filter: This accessory helps extend the lifespan of your Active Air carbon filter

but higher concentrations are available for industrial or medical use

Product Name: 6-inch Clip On Fan

PM Cleanse

Excellent product and service

Spider Farmer 6" Inline Duct Fan with Speed Controller dupe Active Air Pre-Filter: This accessoryDescription Quiet and Powerful: The mixed flow design and EC motor make this fan highly energy efficient compared to traditional inline fans. It consumes only 50 watts of power but provides a strong airflow of up to 350 CFM. The noise level is very low, producing only 32DB, making this 6 exhaust fan virtually silent. The lightweight ABS blades reduce airflow resistance and increase airflow by 40%. Built to Last: Made with a premium ABS plastic housing