There is low air coming out of the vents.
Is there an AC filter in the glove box on my 2002 Echo? on 2002 Toyota Echo
The AC filter is not "in" the glove box of your 2002 Toyota Echo it is located in the HVAC case behind the glove box. The glove box must be lowered out of the way or removed completely to access the compartment cover for the AC filter.