Understand about the Carbon Filter and an Activated Carbon Filter

This video about to understand the Carbon Filter and an Activated carbon Filter.
What is Carbon Filter?
What is a carbon Filter used for?
How does the carbon filters work?
Does the carbon Filter remove the smell?
Are carbon filters dangerous?
Is carbon Filters same as other filters?
What is an activated carbon Filter?
Various forms of an activated carbon Filter?
What are activated carbon filters used for?
How would be benefit from an activated carbon Filter?