No one here has any idea where you live, you'll simply have to check your local listings.
A Zeppelin is a house in the air, so yes.
it pulls all hot air out from the house
the air pressure acting on the roof of your house comes from the air within a few feet of your rooftop
No, the air has other ways of entering the house.
You can open the windows in your house and use fans. Or you can have you air repaired.
You can see your house from the air. You could be in an airplane or a hot air balloon.
The air in your house.
My house has forced air heating. How often should the air duct cleaning be performed?
According to the Wikipedia article "Munich air disaster", the house was unoccupied.
Air vents on the outside wall of a house are typically placed to allow fresh air to enter and circulate inside the building. This helps to improve air quality, remove moisture, and prevent mold growth. Additionally, exterior vents are often located near appliances or equipment that require ventilation, such as HVAC systems or dryers.
the air pressure acting on the roof of your house comes from the air within a few feet of your rooftop
The air all around us contains 78.09% nitrogen, so the air in your house will contain nitrogen.