The airflow rate of autowit air purifier is 35m3/h. It offers good airflow for use in a place, and it has the best performance in smaller than 8 m3, such a car. You can use it in places a bit larger than a car, like using it on the desk of your personal office. There are 3 airflow modes set for this purifier, which could meet your need for silent purification and strong air cleaning.