After the organization of tremendous-strain air flow, the usage of noninvasive air flow (NIV) thru an interface substantially accelerated. The first approach became continuous advantageous airway pressure; however, after the advent of stress assist air flow at the end of the 20 th century, this became the main modality. Both strategies, and a few others which have been these days added and which integrate some technological innovations, have appreciably validated a faster improvement of acute respiration failure in different patient populations, warding off endotracheal intubation and facilitating the release of traditional invasive mechanical air flow. In acute settings, NIV is currently the first-line treatment for mild-to-excessive chronic obstructive pulmonary disease exacerbation in addition to for acute cardiogenic pulmonary edema and need to be taken into consideration in immunocompromised patients with acute respiratory bipap breathing machine insufficiency, in difficult weaning, and inside the prevention of postextubation failure. Alternatively, it could also be used within the postoperative period and in instances of pneumonia and asthma or as a palliative treatment. NIV is currently used in a huge range of acute settings, along with critical care and emergency departments, sanatorium wards, palliative or pediatric units, and in pre-sanatorium care. It is likewise used as a home care remedy in patients with chronic pulmonary or sleep problems. The suitable selection of sufferers and the adaptation to the method are the keys to achievement. This overview basically analyzes the evidence of blessings of NIV in one-of-a-kind populations with acute respiratory failure and describes the principle modalities, new devices, and a few realistic factors of using this approach.