[2-layer filtration] In order to effectively absorb oil gas and odor, a double-layer filtration design is adopted. The first layer can quickly remove grease particles in the oil fume; the second layer of filtration layer can absorb odors and keep the indoor air fresh. [Long-term operation] This product has a built-in storage battery, which can run continuously for 2-4 hours after being fully . Even in the case of power outage or no socket, it can keep the function running, providing you with convenience. Convenient cleaning: Portable desktop range hood, easy to disassemble and clean. Users can easily disassemble and clean the various parts of the range hood, and maintain its efficient range hood suction in just a few steps. Portable application: Compared with traditional large range hoods, our small desktop range hood does not need to be connected to the power supply, can be moved and used freely, and is convenient and flexible. Whether in the kitchen, RV, outdoor barbecue or outdoor picnic , it is easy to carry and use Space saving: Portable range hood, portable design, small and light, high suction, one-button , two gears adjustable, desktop range hood is easy to operate. Choose according to your oil fume size.