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部屋の中の部屋  A room within a room






Currently, I have a 18 tatami-mat room that I use as an office by myself during the day.

It is very inefficient in terms of air conditioning and energy efficiency to use this room only by myself in winter, and I cannot stand it, as saving electricity is my life's work theme.

Therefore, I have installed a simple transparent separator, which can be removed when in no need, to create a room within a room a year ago.

It doesn't look like very good, but it saves a lot of energy.

Energy conservation is a global theme and its necessity has been reaffirmed this year, especially with the negative impact of Russia's invasion of Ukraine, and it is not likely to diminish in the future.