An enterprising doctor is saving the lives of infants stricken with pneumonia in Bangladesh with a device that costs a fraction of traditional ventilator.

The hospital now deploys it routinely and the number of children who die there from pneumonia has fallen by three-quarters. That means the survival rate in the Dhaka Hospital is today almost on a par with that of children treated in rich-world facilities, using conventional ventilators.

Dr Chisti says that, as well as saving lives, his device has cut the hospital’s spending on pneumonia treatment by nearly 90%. The materials needed to make his version of a bubble-CPAP ventilator cost a mere $1.25. The device also consumes much less oxygen than a conventional ventilator.

Read more at the Economist (paywall)