What Does Bilateral Hyper-expansion With No Evidence Of Acute Cardiopulmonary Process Mean In My Chest X-ray Results?

My CX Said bilateral hyperexpansion. Lungs are clear of congruent airspace disease. No evidence of large pleural effusion.cardiomediastinal silhouette is normal in contour. The Impression was bilateral hyper expansion w/o evidence of acute cardiopulmonary process. Your comments please