Can you filter out the staffing agencies?

Can you filter out the staffing agencies? I feel there's a disconnect when staffing agencies get involved. I want direct communication with employer and myself, not staffing agencies saying that have an opportunity asking me the same questions and then finding out the employer doesn't deem me qualified. I realized that employers are very honest and straight to the point about who they would like to hire. That one of the reason I dislike the staffing agencies contacting me. It create another barrier between possible employer and possible employee.