2. Getting rid of the cause of the smell:
It can take a long time, but you will not be completely odour-free until you know the source, and sometimes the furniture may need to be polished.
Here is one of the common reasons behind the bad smell in the home is the stench of pets, the accumulated garbage bags, the upholstery, the wet washing, the old food leftovers present in the house, the bathroom corners, the kitchen sink cabinets, the neglected microwave oven, the dirty carpets, the old pillows, the dusty places.
You should look for the bad smell lingering in your home. You may need to look in the corners of the furniture to look for dead insects such as cockroaches or spiders.