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Is it possible in the winter to open the plastic Windows at -40градусе?

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Another question, why? Windows then nothing will, but with regard to the state of the internal space. Personally, I have such a desire, even at lower temperatures does not occur. Although if you need to ventilate, and may well be open for a short period. Here only the flowers away from the window remove - they will thank you for it you will not tell. On the contrary will become sick and will have to nurse them long after this summer.
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