I use a Perfect Dry Lux (slightly newer model than shown in this video) and am very happy with it. Admittedly, I haven’t done any culture studies to determine bacterial growth (hahaha) but they are nice and dry in the morning. Also, it is virtually silent. I have gotten used to the blue light being on when I go to sleep - it is only on for about 15 minutes.
I always open the battery doors completely. My batteries do not fall out so no worries there. I suppose if they did, I would just turn them “right side up” so they stay in. Resealing batteries is just a little more effort than I have time (or patience) for… Good Luck!