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Can the unit be mounted in a window? - 3M OAC100 Air Purifier

Posted by balthazar hazard on


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There is no reason why not if the outside part is properly weatherproofed and screened to stop insect etc ingress - easier may be to duct the unit to a hole in a window - use at least 125mm/5inch ducting and dont make it too long. It is not recommended to run the unit in this way, however, as you will almost certainly find that the filters etc will block very quickly due to many more airborne particles(especially living ones) in outside air (depending on your situation) and the fact that inside a room with the unit running you have a relatively closed system that will steadily get cleaner as you use the unit. best way to test this would be to run the unit normally but outside for a while to see if it functions ok. Hope this helps - i cant see that you would gain anything from running the unit in a window apart from higher filter replacement costs :)

Posted on Apr 20, 2007


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If you write back with more details, I may be able to offer more precise guidance. If you want, I could try web-searching again.

If I can be of further assistance, or if you have questions, let me know before rating me.

If this solves the issue, please rate it accordingly. My goal is to earn a "FixYa" rating from everyone I help.

Thanks for using,



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