ozone filters

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-qwest-dot-net>" <jimlux-at-earthlink-dot-net>

Laser printers and photocopiers have "ozone filters" in them (my old LJ 3
had a rated life on the filter of 50K pages), presumably to reduce the
levels to safe/legal/acceptable ones.  Anybody know how they work?
(Activated charcoal?, some reactive metal?) Could one rig up a ozone filter
for indoor operation (much like the portable air filters with HEPA, etc.)?  

It sure would be nice to operate HV gear in a smallish room without needing
to worry about the ozone exposure (which, in addition to the health
effects, really does a number on rubber products)