i guess it was a run on....i dont like to use periods for sentences i us them to separate ideas inside sentences
anyways mine has a plastic box that you fill with water then you flip it upside down and put it on the base of the machine...there is a tub type thing that the ultrasonce waves are made and above that there is a long chamber to condense the fog and build it up so then it can have the mist sortof shoot out a nozle at the top...
I hope that wasn't too confusing anyways it is sort of small and i think my parents used when i was little (im 16 now) so i could breath when i had a cold or something im not sure.
it isnt very loud and if you want like a carpet of fog on the ground this wont do that it makes the entire place hazy but you can still see every thing.
also i have heard the the ones that you have to put into water aren't very good for large open areas like a screen cage...they are mor for frog inclosures like dart frogs.