Selling 6 months old "Philips Oxygen Concentrator Respironics Ever-flow"

"Philips Oxygen Concentrator Respironics Ever-flow" I have this used product available for resale. It was purchased in March 2021 and hardly used for 6 months. It comes with 3 years manufacturers warranty and service warranty from Portea. It comes with original GST bill from Portea. Pls let me know if anyone interested to buy.
http://dlvr.it/S9X47S