Product review (5 stars): Clothes dryer heat deflector
With energy prices at an all-time high, I wanted to conserve as many BTUs as possible.  This is a very eco-friendly device that mounted with little effort in the exhaust vent hose of my "ELECTRIC" clothes dryer in my unfinished storage basement.  I quoted and capitalized "electric" because using this device with gas clothes dryers is not recommended, perhaps even prohibited (possible danger of toxic gases).  Because the filter mesh had large openings, I had to improve the exhaust filter process to prevent the fine lint particles from being circulated into my living spaces (I actually used some spent dryer fabric softener/anti-static sheets - the circular mesh cover pulls off and allows me to place one of these used sheets over the hole, to be held in place after I reattached the mesh cover).  I understand that an old nylon stocking or hosiery as well as cheesecloth would work, too.

And you can't beat the price........