Sun Purification
Question :

Can the Sun make permanent fixtures inside a house tahir through glass windows?

Answer :

As an obligatory precaution, the sun can not make anything tahir through glass and the like.

The Sun from the Window
Question :

If the Sun is seen through the window of a room, can it make the floor of my room tahir after it has become najis?

Answer :

The Sun can make permanent flooring tahir, if the window is open and the sun is directly drying it, but it does not make the carpet and the moveable things tahir.

The Inside of the Car
Question :

If the inside of the car has become najis, and after the removal of the actual najasah it becomes dry by the Sun, will it become tahir?

Answer :

Mobile things such as cars are not made tahir by the Sun.

Najis Clohes
Question :

Do najis clothes need to be dried in the Sun after being made tahir by water?

Answer :

This is not necessary.