There is a smell similar to Western medicine in the bathroom at home, and the smell of a disinfectan

Turn on the ventilation of the bath bomb Open the door of the bathroom and ventilate for 15 minutes.

There are two pipes that connect the bathroom in the home and the neighbor's bathroom: the exhaust pipe and the sewer pipe.

The smell has an upward character, so the downstairs neighbor and the exhaust pipe should be the number one suspect. Water has a downward character, so the upstairs neighbor and the sewer may be the second suspect. To deal with exhaust pipes, should you check whether the exhaust fan itself has an air sealing valve?

Usually the locking is only when the fan starts to be blown open by the phoenix, the phoenix stops the door and closes again, this is to avoid other people's exhaust gas discharged to their own home, if you don't have it, it is recommended to replace it with a new one, the price is not high. The sewer is to be inspected: toilets, whether the floor drain has a water seal?

Generally, the squat toilet does not have a direct connection, and the entire building is directly connected, including the building's septic tank, and sometimes the septic tank will put a large amount of disinfectant (possibly hydrogen peroxide), and the disinfectant water gas will spread directly through the stairway, sewer, and even exhaust pipes to the whole building. Generally, the septic tank of the building is located in the basement, and the basement has exhaust and fire smoke exhaust equipment, if this is the real culprit of the smell, you can ask the property management to start the exhaust for a whole day to see if it improves.

Check to see if your home's drain is upswinging.