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My windows have sweat on them

Foarming black looking stuff to be on seals

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It's mold from the moisture, make a mix of 1 part bleach to 5 parts water and spray it, the black may not go away entirely but it will kill the mold.

Posted on Jan 24, 2009

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fresh air circulation = less condensation and also less CO and other bad things in the air you are breathing...just because its vent free does not mean its not dangerous in a tightly closed room. The vent frere designation assumes a certain number of air changes per hour and you are not getting them.

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