I use nothing but carefresh and I have used it for years, carefresh is not dusty however I use the origional carefresh not the stuff you have pictured... I dont like aspen it can get lodged in the snakes mouth... Ive never had a problem with carefresh and it is very good for keeping humidity lvls right.... Ive never had a problem with odor from it either... Aspen shavings have a much stronger smell than carefresh...
If you do use it dont get cheap non namebrand stuff... That stuff is dusty....