> This suggests standard lid usage reduces but does not eliminate flush-related bioaerosols. Lid-use changes their characteristics and apparently prolongs their

> This suggests standard lid usage reduces but does not eliminate flush-related bioaerosols. Lid-use changes their characteristics and apparently prolongs their residence time in room air. There is another problem with lid: the success rate of toilet flushing is not 100%. If you close the lid, you cannot verify if your flush was unsuccessful and then retry. If you close the lid, flushed and then immediately verify the result opening the lid up again, some amount of aerosol will still escape. All and all, I'm pretty sure you don't want to see a surprise when you open the lid especially when the toilet is shared.