 Nasal continuous positive airway pressure nCPAP is widely used in preterm infants as it is efficient, but it creates an unfavorable environment for preterm infants. Indeed is a primary source of continuous noise in neonatal units and causes discomfort, pain, skin lesions. High flow nasal cannula HFNC introduced more recently in neonatal care supplies high allowing for carbon dioxide nasopharyngeal wash-out, reduction of work of breathing and is well tolerated. HFNC could help to improve the environment of preterm infants by reducing deleterious stimuli noise, pain, discomfort and by facilitating the contact between parents and babies. Efficacy of HFNC seems to be similar to other non-invasive respiratory supports for preventing treatment failure, death and bronchopulmonary dysplasia. The benefits of HFNC implementation was only slightly analyzed in extremely preterm infants. the place of HFNC is becoming increasingly important in neonatology and could help to improve the quality of care. Few HFNC devices are available but their cost of use has not been evaluated in Europe. 