I am intrigued! Do you work for the ambulance service? I am now semi-retired, but still work as a paramedic (part-time) for Great Western NHS Ambulance Service - soon to become part of the South Western NHS Ambulance Service.
Indeed Harley, I am a Community Responder for SWAS so who knows, may have the pleasure of meeting up one day. I spend a lot of my calls at both St Marys residential home, Cheshire Homes and Daneswood residential home near here hence the comment about not recognising this piece of equipment. Jane, you hit the nail on the head with the sleep apnea, that's exactly what it is for. Glad that's sorted!