Do over-the-oven microwaves with exhaust inherently suck? (no pun intended) [more inside]
posted by jclovebrew on Nov 3, 2008 - 14 answers

Should I get a new catalytic converter for my truck? [more inside]
posted by ZaneJ. on Aug 26, 2008 - 5 answers

We just bought a house, and the bathroom fan currently vents into the attic. I know this isn't good, and I have done a bunch of googling, but I still have questions. Like: who should do the work -- a roofer, a handyman, someone else? Is it better to vent through the roof or through the wall, as our handyman suggests? Any other things I should know?
posted by trillian on May 14, 2008 - 10 answers

I thought I was doing an environmentally smart thing by switching our dryer vent to an indoor water filtered vent in the winter, but a friend claims the fumes may be harmful. Crap or not crap? [more inside]
posted by Toekneesan on Oct 13, 2007 - 24 answers

How do I eliminate noise from 20ft of 3in PVC exhaust pipe without reducing pipe diameter or airflow? [more inside]
posted by kuujjuarapik on Oct 9, 2007 - 8 answers

When buying exhaust flex pipes like these, to fit over an H-pipe with a diameter of 2.5", would you buy the flex pipes with the 2.5" outlet diameter or do you need something bigger? [more inside]
posted by Venadium on Jun 2, 2007 - 1 answer

Harley paint and exhaust. Two part question. I've decided not to sell the pig and to at least be a weekend warrior. But my loud exhaust won't work here in this neighborhood. Read more... [more inside]
posted by snsranch on Dec 2, 2006 - 4 answers

Anyone know anything about masks and propane? [more inside]
posted by iurodivii on Nov 28, 2006 - 9 answers

Aside from not driving behind other vehicles, how do you keep ambient exhaust fumes out of your car cabin during a commute? Filters? Ionization? Impossible?
posted by parallax7d on Dec 21, 2005 - 5 answers

Noxious cooking, chemical, and exhaust fumes at work [m.i.]: [more inside]
posted by naxosaxur on Jan 27, 2005 - 12 answers

Weird theoretical question filter: At the moment, gas exhaust from cars rises, and produces a layer of smog above large cities. If everyone used hydrogen fuel cells, this exhaust would be water vapor. Does this mean that it would often be rainy or cloudy due to this water exhaust? If not, what would happen?
posted by unreason on Jan 10, 2005 - 18 answers

Why are motorcycles with EXTREMELY loud exhausts allowed to be built and used in this country (US)? I'm talking about those Harley types that can be heard for a mile, and are so loud that they literally hurt your ears. I can be in my house with the windows closed and when one goes by, I can't hear anything but the noise of the exhaust. And forget about driving and having one next to you -- it's simply deafening.

Aren't there any noise laws to prevent this??
posted by eas98 on Dec 16, 2004 - 56 answers

What are the primary gases produced by propane combustion? I was just told a story about a nearby warehouse, very high ceilings, 2600 sq ft, which is being heated by umbrella-style outdoor propane heaters (think of outdoor restaurants in LA, for you left coasters). Visions of dead people litter my mind, consequently. Am I right, or confused with regard to the exhaust? Please provide authoritative links so I can pass this along without being confrontational.
posted by mwhybark on Nov 4, 2004 - 6 answers

Diesel engine cold starting problems... { mi } [more inside]
posted by derbs on Oct 7, 2004 - 8 answers

What's the best way to get rid of lingering odors? [more inside]
posted by theNonsuch on Oct 2, 2004 - 6 answers