Thank you for viewing! High-concentration oxygen server with timer function and a convenient caster design for easy movement. (Price negotiation possible) - Brand: shenpix - Model Name: High-Concentration Oxygen Server - Function: Timer function (0-99 minutes) - Flow Meter: CFOC-Hg - Design: Movable design with casters Currently sold on Rakuten Ichiba for 418,000 yen. Received from family during the 2021 COVID-19 pandemic, but only test-run and then stored. (Purchased from an authorized dealer) Operation confirmed in November 2025. The condition is very good, but please understand that there may be some minor, inconspicuous scratches due to home storage. Accessories (All in photo 8) ・3 masks One is used, so I will dispose of it. The remaining two are unused, but the expiration date has passed, so I will dispose of them if you don't need them. ・1 cannula, unused ・Instruction manual ・1 x 2m tube, unused ・1 white filter for the main unit, unused ・No outer box. Will be shipped in a separate box. ●Product Specifications Maximum oxygen flow rate: 5 liters per minute Concentrated oxygen concentration: 90%～94.8% Maximum output pressure: 20kPa±50kPa Power supply: AC100V Power consumption: 400VA Body weight: 18.3kg Body size: Height 640 x Width 240 x Depth 490 (mm) Durable usage time: 8,000 hours Non-medical device Due to the high price, returns are not accepted. Thank you for your understanding.