1 more question..this time about blow drying

Hey everyone just wanted to say that I really appreciated the feedback, and i'm trying out some of the suggestions :)I have a question about blow drying though,I used to have an attachment for my blowdryer that directed the air to one spot (i don't know what it's called, i hope y'all know what i'm talking about) and I used that and the round brush to dry my hair...I heard that you're supposed to use it when you dry w/a round brush so it directs the air to that section you're drying and doesn't damage the rest of your hair...well anyways, i lost my attachment, and i was wondering if i could just dry my hair w/out it? or should i run out and get another attachment?thanks :)sharona