[Long-term operation] This product has a built-in energy 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. 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 Convenient cleaning: Portable desktop range hood, easy to disassemble and clean. Users can easily disassemble and clean the parts of the range hood, and maintain its efficient range hood suction in just a few steps. [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. Space saving: Portable range hood, portable design, small and light, high suction, one-button start, two gears adjustable, desktop range hood is easy to operate. Choose according to your oil fume size. Colour:White Material:ABS Note: The air inlet should be as close as possible to the cooking of the appliance. For maximum effect Package Contents: 1 * range hood 1 * filter 1 * USB charging cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.