The smell is the result of putrefactive processes, the reproduction of microorganisms on the surfaces of the car's ventilation system. The air is drawn through the cabin filter or the air intake in the cabin, then it passes through the evaporator and is sent to the cabin. When the air conditioner is turned on, the evaporator has a temperature lower than the ambient air, so condensation will form on it. When we arrive at a parking lot and turn off the air conditioner, there is often still moisture on the evaporator, which now, together with the dirt in it, heats it up to the ambient temperature. As a result, we have all the factors for the reproduction of bacteria, the occurrence of rotting on the evaporator – this is water and dirt. I think you need to turn to an affordable aircon service Singapore. They will help you.

Thanks for the information. Do drone require wifi to fly? I think that drones don’t require WiFi to fly or record videos. And it is perfect because you can be in a place where the internet doesn't work but you should make a video with a drone. However, if you want to enhance its functionality, such as sending ultra-frequency transmissions or sending the video in LIVE, you will need WiFi. Lastly, a WiFi connection is necessary to download and update the drone’s app, if you want to be on top of all changes.