Airsep Freestyle 5 for sale with 2 spare batteries that can be worn around the waist.
Its the smallest and lightest in it class at 2.8 Kgs (6.2 lbs).
Delivers 1-5 litres per minute of oxygen,
9 months old , still with over 2 years of warranty remaining.
Comes with chargers for the home and car.
In very good condition but the shoulder strap is a little tatty.
Cost £3500, so sensible offers please.