dead space
dead space is air that is inhaled by the body in breathing, but does not take part in gas exchange. Not all the air in each breath is able to be used for the exchange of oxygen and carbon dioxide. About a third of every resting breath is exhaled exactly as it came into the body. In adults, it is usually in the range of 150 mL.1 Because of dead space, taking deep breaths more slowly (e.g. ten 500 mL breaths per minute) is more effective than taking shallow breaths quickly (e.g. twenty 250 mL breaths per minute). Although the amount of gas per minute is the same (5 L/min), a large proportion of the shallow breaths is dead space, and does not allow oxygen to get into the blood.
The Urban Dictionary Mug
Easy to order and packaged well!!
It's an amazing product!
The mug is a lot of fun and arrived as promised! Thank you
Just what we ordered, arrived in perfect condition, arrived on time! Excellent!
So fun! Looks just like I expected. I like that I could edit the mug to say what I want.
got one for Cole M.'s mother, she loved it! Best mediocrely- timed sex ever!!!
The mug is beautiful and I love it! Thank you for having a handle large enough for a man to hold onto! ♥️
Mug printed nicely. Great gift idea.
Really great! Your custom mugs are amazing and hilarious
lit af my name is Frey and the def isnt true but its so great
Cole M. got me one for my birthday, fastest sex ever
Cole M. got this for me. best sex of my life.
Got it for Cole M. girlfriend. Slowest sex of my life.
Fucking awesome. Bought this while drunk and don't regret it.
Cole M. gifted one for me on my birthday. I will never forget that day. 10/10
I didn’t get one yet but if I did it would also be for Cole M.’s girlfriend, we would have amazing sex
Was a gift and arrived on time. Just as advertised. Lots of fun.
The price is a little bit expensive, but the gift arrived as ordered. Thanks!
The price was a little expensive, but the gift arrived as ordered. Thanks!
Great mug got one for my highschool crush
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