In people with fibrotic ILD and exertional hypoxaemia, ambulatory oxygen delivered using a portable concentrator did not provide benefits over ambulatory air for physical activity in daily life. Routine prescription of ambulatory oxygen using a portable oxygen concentrator for people with fibrotic ILD with isolated exertional hypoxaemia might not be indicated. These results reinforce the pressing need for innovation in portable oxygen devices to ensure effective oxygen delivery and acceptability to patients.
In people with fibrotic ILD and exertional hypoxaemia, ambulatory oxygen delivered using a portable concentrator did not provide benefits over ambulatory air for physical activity in daily life. Routine prescription of ambulatory oxygen using a portable oxygen concentrator for people with fibrotic ILD with isolated exertional hypoxaemia might not be indicated. These results reinforce the pressing need for innovation in portable oxygen devices to ensure effective oxygen delivery and acceptability to patients.