Many concerns commonly raised about leaf blowers are now out of date, Larry Will writes in a letter to the editor. "The only real problem with leaf blowers is that some are still irritating to listen to, especially the older ones," Will, a leaf blower information specialist, writes in response to an earlier letter. But "[b]e aware that not all blowers are noisy. ... Go talk to a contractor that uses quiet blowers and ask for a comparative demonstration. You will be amazed by the difference."