Its small, pretty light, alot of air holes, easy to get to the battery
Not that much quieter
This is a decent product i got mine for around 40.00 which isnt too bad pretty close to the jt fans, it is compact and light. The battery door uses 2 screws but u dont need to take the fan off the mask to change the battery,( though it is pretty east to put on and off.)
They include a AAA battery, Its a push button switch, it may have its good and bads for that, havent played with it yet. Note if u have a visor on your mask may i reccomend one thing. the visor has a little tab that stick down to help turn on and off the fan, well the tab also turn it on when u dont want it on, what i did i cut off the tap on the visor, and toke a exacto knife and cut a half moon near where the push button is so its easy to press down onto the push button, without the tab its nice not having it turn on/off when u dont want it too.
Not much more differant from the jt fan, but dye did try. Overall i would say its a pretty good fan compared to teh few that are out there, and well u really have no choice b/c this is the only one that fit the proto.