Inhale some damp air. Inhaling wet air or steam has the same effect as drinking warm beverages. It can help relieve congestion and mucous in your airways, making breathing easier. Take a hot, steamy shower with the door closed, or use an at-home humidifier. If you cannot get out of your house for any reason, call a friend or family member who can bring you some wet towels or a bowl of steaming water with lemon slices in it. Exhale some dry air. Exhaling dry air will help clear your lungs of mucus and other irritants. Open a window for some fresh air or use an air purifier. These are helpful tools for removing pollutants from the air you breathe.