OKFIL Window Filters designs and manufactures innovative supply air valves with air purification and noise insulation, especially for cold regions. The company's mission is clean air to every home. OKFILWindow Filter allows you to ventilate the room with closed windows with protection against street noise, fine dust, car and factory emissions, and does not consume electricity at all. OKFIL Window Filters operate at outside temperatures from +60 °C to -55 °C, a unique technology protects the valve from freezing and airborne noise.

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OKFIL Window Filters are already installed in 17 countries: Russia, Kazakhstan, Belarus, Ukraine, Latvia, Azerbaijan, Mongolia, Kyrgyzstan, Moldova, Poland, Macedonia, Georgia, UK, Spain, Germany, USA, Canada.

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