I just want to share a very badly created video of an oxygen concentrator machine scam which I have purchased recently. I am sure this may well be of interest to those who are also disabled.
The video is of a portable oxygen concentrator advertsised as 1-5L which suggests 1 to 5 litres, not 1 to 5 levels. It is incredibly noisy as soon as it starts up and provides a maximum of 1 litre of oxygen in pulses and is completely useless, and a waste of £600+. This machine costs in excess of £600 and is a con.
If you start an email discussion with the company and Varon which is a Chinese scam company, they will say anything they like apart from the truth.