Can stone breath?

Recently, I'm surprised by myself for a fancy idea.

Stone can breath like man.

As you know, I'm sales in one company for slate products.

We have one big showroom. 

Whenever I come into this room,a special smell go into my nose.

At first, who care...

Now I'm convinced that slate is like man breath every minutes,every seconds.

Suck in air, put out carbon dioxide.

So whatever home contractor, interior designer, home owner, you need to take care of stone's breath, open doors or windows regular time. 

Let in fresh air for whole family.