A 70-year-old male patient presented to the emergency room with increasing shortness of breath. He is known to have COPD on salbutamol inhaler as needed. He denied fever but complained of increasing sputum production. On examination he is distressed with heart rate of 110 per minute. Blood pressure 126/70, respiratory rate of 30 per minute and O2 Saturation of 85% on room air. He had decreased breath sounds bilaterally with expiratory wheeze What will be your appropriate action?