The air reaches the tiny air sacs (alveoli) in the inner part of the lungs with any dust particles that avoided the defenses in the nose and airways. The air sacs are very important because through them, the body receives oxygen and releases carbon dioxide.
1 A full size keg holds about 15.5 gallons (165 12-oz cups) and is sometimes referred to as a 1/2 keg. 2  The full-size kegs typically start at about $100 for American draft beers. 3  Specialty beers, lagers and ales can cost from $125-$250.
Quarter Barrel Keg: Short and stubby in size, the Quarter barrel keg is the same width (16ââ) as a full barrel, yet approximately 10â³ shorter in terms of height. Commonly called a âPony Kegâ or a âStubby Keg,â this popular keg size will hold the equivalent of sixty-two pints or eighty-two bottles off beer.his smaller sized keg functions just like their larger counterparts with the only difference being that it holds less beer than other types of kegs. This size keg is also a great choice for restaurants and/or bars that have little space, but want to have a large variety of beer available for customers.