This was made by me, a drawing based on a realistic image of the lungs

Although you can’t increase the size or capacity of a lung you can improve their function even a sick lung. This makes you feel like you’ve increased your lung capacity, but really you are only optimizing the capacity you already have

Labeled diagram human lungs - buzzle, Lungs form the central organs of the respiratory system and facilitate the exchange of gases along with the associated airways and blood vessels. Description from networking-dummies.com. I searched for this on bing.com/images

Decorate and personalize laptops, water bottles, and more Removable, kiss-cut vinyl stickers Super durable and water-resistant 1/8 inch (3.2mm) white border around each design Matte finish For orders with 2+ small stickers, they will be printed in pairs with two stickers on one sheet to reduce sheet waste Since every item is made just for you by your local third-party fulfiller, there may be slight variances in the product received