This is a dust collector with an activated carbon unit made by As One. It is working properly. It was used for dust collection during plastic processing and has not been used for painting, so the inside is clean. The ventilation hose was not found, so I will include one. It is a set of a fan unit and an activated carbon unit. When purchased, the units together cost about 280,000 yen. It collects dust, of course, and thanks to the activated carbon, there are no complaints about odors from the neighbors. You can work with peace of mind. I have purchased a large dust collection unit, so I would like to sell this to someone who can use it. The set contents to be sent are: Portable fume hood Acid-resistant activated carbon unit Replacement activated carbon is inside the machine. Exhaust duct bellows hose, extends up to 4m. (Scale is not included.) Please check the "AXEL" website for details. I purchased it because I heard that the activated carbon would remove odors and dust. The sound is relatively quiet. If necessary, you can replace the activated carbon for even better results. There are some scratches on the top plate. Overall, there are fine scratches and rust, indicating use. It is a used item, but it can still be used. Hoses and hoods for your hand are also sold on AXEL. (It's cheaper to buy them on Amazon, etc.) I do not offer significant discounts, but if you will take good care of it, please send me a message to negotiate the price. Thank you. If you have any other questions, please feel free to ask. Thank you very much.