I purchased this three years ago and used it about twice a week for about six months, after which I stored it. I have confirmed that it works. I disinfected it by soaking it in sodium hypochlorite before listing it, but please do so again if you are concerned. ◆◆All parts are included, but I purchased an inhalation mask (large), a nosepiece, and a filter for the listing, which cost 3300 yen including tax. They are unused. This is a bargain price including the additional items. Please comment if you don't need them. The OMRON inhaler COMP A-I-R comes with various attachments and a carrying case for easy portability. ◆Here is the list of what I will send: - Brand: OMRON - Model name: COMP A-I-R - Accessories: ・Nebulizer kit x 1 ・Water tube / Baffle (spare) x 1 ・Air hose x 1 ・Replacement air filter x 5 + ◆5 (sold separately) ・Nosepiece: ◆ (sold separately) ・Mouthpiece x 1 / Inhalation mask (small) x 1 ◆(large) x 1 (sold separately) ・Adapter for inhalation mask (small) x 1 ・Carrying bag x 1 ・Instruction manual x 1 (slightly dirty) ・Medical device attachment document x 1 ◆This is a very good price including the unused, separately sold additional items◆ Thank you for viewing. We look forward to your purchase. Take care!