Around each spacer (micro-spacer) a round
frost
(dew condensation) of a size of a coin
appears.
In the wintertime, if you cook something
in the room
or the relative humidity of the room reaches
nearly
its saturation level, a cold temperature
outside
the window is conducted to the room through
the micro-spacers and it causes to reduce
the temperature of glass around the
micro-spacers.
It appears as round frost all over the surface
of the glass as shown on the picture.
Dew condensation begins at the coldest
part of the glass as the air on the surface
of such part cannot hold moisture
and squeezes out of the moisture in the air.
