Sturdy material: Made of stainless steel, high strength, wear-resistant, rust-proof, durable. With filter: Built-in grille effectively isolates debris and dust, preventing pests from entering the interior and preventing blockage of the channel. Special design: The Venetian blind is a unique mold, tilted 45° downward, clean, can effectively play two effects of rain, can also cause smoke emissions. Beard design: The beard can be reversed to wear the pipe, so that the pipe does not fall easily. Practical: The fan can be perfectly used to extract internal air and is less noisy. It could also be used as a decoration, and it is also very easy to disassemble for easy cleaning.