500 Nl /minute compressed air x 60 / 1000 = 30 Nm3/hour compressed air. 2. Nm3/h → Nl/min. The product consumes 30 normal cubic meters compressed air per hour. How many normal liters of compressed air is this per minute? 30 Nm3/hour compressed air / 60 x 1000 = 500 Nl/minutes compressed air. Compressed air consumption can be used to determine ...