1. There is no smoke exhaust on the fa? ade on the first floor, so it is enough to install smoke exhaust at one location, or to install a smoke exhaust system, which needs professional construction to ensure the quality of the smoke exhaust installation system. 2. We can also buy our own equipment and ask the installation master to install it, or ask the installation master to buy equipment for installation. If we install the equipment ourselves, we need to lay a hole pipe with a diameter of 100mm on the external wall in advance. After installation, the hole needs to face down, which will affect the upstairs residents. 3. We can also look for a decoration company to help us. If there is no smoke exhaust on the first floor, we can install a whole kitchen. Professionals will measure the diameter of the hole on the external wall and then drill the hole directly with a hand drill. When installing pipes, we must go down. If there is no downward direction, it is likely that smoke will come out and affect the residents upstairs.