The duct tape/condom thing is pretty much what Peter wants to do to Tom Ridge. Of course, one assumes he needs to breathe.

The sealing off of a house will probably help keep most particulate matter out, but not all. If you completely seal off all outside air (and I doubt that can be done), it winds up being pretty much what Peter wants to do to Tom Ridge.

Personally, I'd make a suit out of the plastic stuff, with a hood, which I would tuck into rubber garden boots and rubber gloves, then seal them up with the duct tape. I'm not sure what to do for air. Maybe a full-face respirator with air tanks, but I'd need an awful lot of air tanks, but that's do-able. Simple. I haven't worked out what to do in the possible event I'd need to pee or something, but that's just a small detail.