"jim evans" wrote in message
...
On Fri, 24 Jun 2005 21:41:52 -0500, "Greg O"
wrote:

I do HVAC service for a living. I have yet to see someone service an
electronic air filter often as they needed to. Once the electronic
elements
get dirty the filter does nothing. When in use, cooling or heating season,
electronic filters need cleaning at least once a month to do the job.

I had an electronic air cleaner in a house several years ago. It had
an alarm and a meter that told you when it needed to be cleaned. Do
most units not have these or are they not effective?

jim


I have never seen one with an alarm or meter.
Greg