Does flushing the toilet without putting lid down cause germs in air that could land on your toothbrush?

Yes, flushing the toilet without putting the lid down can cause germs to become aerosolized and potentially land on your toothbrush.

When the toilet is flushed, water and waste are propelled into the air, creating a mist. This mist can contain bacteria and viruses, such as E. coli, Salmonella, and norovirus. These germs can then remain suspended in the air for several hours.

If your toothbrush is stored in the same room as the toilet, it is possible for these germs to land on it. This is especially true if the toothbrush is stored in an open container. Germs can then be transferred to your mouth when you brush your teeth, potentially causing illness.

To prevent this from happening, it is recommended that you always put the lid down before flushing the toilet. This will help to contain the mist and prevent germs from becoming aerosolized. You should also store your toothbrush in a closed container, away from the toilet.