Due to the large size of this item, I will need a day for packaging. Before shipping, I will re-check its operation. I will take photos and videos to confirm that the concentration meets the requirements. If you would like it to arrive urgently, immediate shipment is also possible. Please let me know!(^^)! I aim to ship within 24 hours, but it might be a bit difficult. I will do my best to ship as quickly as possible. Thank you for your understanding. 2024.5 Previous owner replaced zeolite 2024.8 Received by me ✴UNICOM Oxyvenus Mini 1000 The previous owner replaced the zeolite with a new one, and I received it without it being used much. However, my dog was scared and wouldn't enter the oxygen chamber. ✴Oxygen Chamber S Wiped with alcohol and immediately wiped with water, then wiped dry. It seems that wiping with alcohol can cause it to turn white, so I tried to wipe it off quickly. I don't think there is any clouding. ✴Oxygen Concentrator This also measured correctly. I used the Oxyvenus several times, so I have used the zeolite, but I only put the oxygen chamber in a high-concentration state for a few times for 2-3 days. Even at the most, it hasn't been used for a total of 20 hours. My dog actually went in and out of it. Please refrain from purchasing if you are concerned about home storage and used condition. The following is a web excerpt: 【Manufacturer】UNICOM UNICOM 【Product Model Number】Oxyvenus Mini 1000 【Tax-inclusive List Price】82,830 yen (75,300 yen excluding tax) ●Power supply: Car/Household 100V ●Operating noise: 45db ●Oxygen generation method: PSA ●Oxygen concentration: Approximately 90% to 30% ●Flow rate per minute: Approximately 1 liter to 4 liters ●Power consumption: 90W ●Size: w199 x D320 x H324 (mm) ●Weight: 6kg ●Operation *The Mini 1000 cannot be operated continuously for 24 hours; continuous operation is possible for a maximum of 5 hours with a timer. Zeolite life is 1500 hours, and the replacement cost is about 20,000 yen. The concentration is also good, and it is sufficient as a product!! You can use it immediately. Pet Oxi Hotel S It was large enough for a small dog to sleep comfortably. The oxygen concentrator can be placed in two transparent windows, and you can check the concentrator from the outside. The oxygen chamber reached a full state in 10-15 minutes. After adjusting the concentrator in the room, please put it in the pocket of the oxygen chamber. (So it can be seen from the outside) It's reassuring to have the values quantified.