Yes, but at HDB you either hand them at your corridor or the tek kor. She lives on level 2, so it's easy for paparazzi to zoom in. If at the corridor, such items run the risk of being stolen by over zealous grassloot leader like John Tan to be kept as a medal of honour.
The point is there is no privacy at HDB. You don't want to see the President's underwear.
if no hang means use disposable or air cooled?