Product review (5 stars): This dryer vent cleaning kit works like the expensive ones
This dryer vent cleaning kit works like the expensive ones. You can't go wrong buying this.  It hooks up to a 1/2" drill and fits right in the vent outlet.  The directions are poor. I worked at an appliance store and we used one of these all the time when we delivered dryers.  The directions say to go in from the inside. Don't do that. That will waste your time. Go in from the outside with the dryer on, (right before a shower, not after). The lint blows out while you are cleaning it.