In article ,
Julie P. wrote:

"Dan C" wrote in message
news
On Wed, 13 Apr 2005 07:26:22 -0400, Julie P. wrote:

1) Do window A/C units, when set on the fan only setting, blow fresh air
in
from the outside, like a regular box window fan, or recirculate air from
the
inside?

Should be from the outside. Some units have a selector switch for
fresh/recirculate.

2) Same question, but with the A/C turned on. Does the air come from the
outside or inside?

Same answer.



Thanks Dan! But then why is the filter right along the front (inside the
house) grill of the air conditioner? And why is dust forming on this same
grill? It seems that the AC unit is sucking in air from the inside via the
grill then filter?

J.



Dan is incorrect here, a window AC recirculates the same air from the
room back into the room. Some window AC units have a vent that can
be opened to mix some outside air with the room air, but it usually
is a pretty small volume compared to the recirculated air.

--

Larry Wasserman Baltimore, Maryland