On Sep 30, 11:41*pm, Harry K wrote:
On Sep 29, 6:33*pm, "james" wrote:

I want to put together an ultraviolet air cleaner. Commercial ones are
either too expensive, or too small.

I've located all the parts (the lamp and the ballast) except the case. Any
idea where to buy a steel box that's 4 feet long by 1 to 2 foot square? It
should be unpainted. Shinny (polished) interior is even better.

1/2" foil faced foam insulation board and some tape. *Would work if
there is no stress on the 'box'.

That's the ticket. If there were some stress he could just bump it up
to 1" or 2" foam board. It's by far the easiest solution.

R