1、Aluminum Alloy Material: Car air fliter is made of aluminum alloy material, durable and wear proof, can prevent scratches and fingerprints. 2、Ultra Quiet And Undisturbed: The operating noise of air fliter for car is less than 36db which makes you feel comfortable during you drive and sleep. 3、Energy Saving: High efficiency filter air volume accelerates air circulation and enhances air flow, while ensuring quieter and more energy saving. Filter air efficiency up to 25‑30㎡/h. Powerful power turbine motor, silent and more energy saving. 4、Mini And Practical: This car air fliter with delicate, mini and lovely car shaped appearance, is designed to be a perfect decorative piece that fits in with any decor. With compact and portable designs, easy to storage. 5、Widely Used: Portable and small design is very easy for you take to anywhere. Perfect mini air fliter , portable for any small area. It can be used in bedroom, office, car, etc.