According to geomantic omen, the house should hide gas. Is it true that the windows at home can't be ventilated?

That's not true, as long as your door and window are not in line. The door is an air inlet. If it is in line with the window, then the air just comes in and goes out through the window. How can we hide and get together? Generally, the two doors that are opened are S-shaped. This can ensure that the gas is not easy to escape.