This is one of the one's I was on about.
Ignore the Philips thing, as they are universal smoke boxes. The biggest problem you are going to have with this is the noise level.
Units can be purchased from here
www.thefreshaircompany.com but they are designed for pubs / clubs where noise is not an issue.
I heard one of these babies when I was looking for one, but the fan noise is around 50 - 60db. Way too lound for home cinema.
In the end, I went DLP cause of the sealed optics and make sure the other half vacums the vents everyday when she is doin the hovering.
BTW - The BenQ is not smoke resistant, but they guarantee to repair any faults caused by smoke damage (As it's DLP, the only damage will be clogged fans).