yuwell 8F-5A Portable Oxygen Concentrator Machine (93% Concentration At 5L), White

The listing says 2 year warranty, here you say 6 months. Which one is it and how do I avail it if there are any issues in Chandigarh?

What is Warmup time to reach full saturation ? This is important criterion

Warranty claim kaise hoti hai

In the description, it is mentioned as 2 year warranty on the machine. whereas in the q&a the warranty is stated as 6month. which is correct?