Why is the weather getting warmer and warmer and the smell of painted doors getting stronger and stronger?

This has something to do with the filler inside. Paint doors are generally filled with wood and honeycomb paper, but if wood and honeycomb paper are shoddy, they are filled with inferior wood and waste newspapers, which contain many impurities and bacteria. After a long time, mildew will definitely occur in a closed environment, and there will be many bacteria, and the gas generated inside will leak out from the keyhole and gap, which will be very unpleasant. In addition, the temperature will rise and spread faster, so it will be more uncomfortable.