Prototypes of air filter used in the country before the revolution, as evidenced by the numerous bars on the facades of old buildings. Such systems were required not only for ventilation, but also the flow of outside air for many stoves and fireplaces, which served as the main heating devices. Ventilation From the photographs it is clear that the organized flow through special devices installed in the walls were very widespread in pre-revolutionary country and the Scandinavian countries. Further development of the ventilation of dwellings in our country, unfortunately, reduced to ventilation through the poor quality joinery (windows) and building construction, which is reflected even in the construction norms and regulations (SNIP). Ventilation Widespread belief that the October Revolution ventilated dwellings in our country took place through the use of wooden windows, but rather gaps in these windows, it is not entirely correct, because in high-quality windows, cracks at least as well for poor performance, and in particular for the manufacture of windows with adequate ventilation slits, with the king suspended and may not arbitrarily cut off the head. Confirmation of the idea that the windows be windows, and ventilation ventilation can serve as a modern tightened standards for air and shumopronitsaemost windows, with different requirements for PVC windows and wood are not done. Statvent system consists of active natural extracts and orderly flow. Scheme 1. Incoming VALVES 2. Exhaust GRILLS 3. Flexible Ducts 4. OUTER GRILLE FOR AIR EMISSIONS 5. Exhaust Fan 6. Speed knob How it works Statvent How it works Statvent is as follows. The existing system is active in the building exhaust system creates negative pressure in the premises, and due to this dilution in the premises through a special inlet valves Kiv orderly comes fresh outdoor air. What is "active stretching"? Active stretching - is any stable operating mechanical exhaust system or natural. Which is preferable to extraction? Preferred mechanical ventilation, because it: * Guaranteed extract in any season * Ability to adjust the intensity of the exhaust and general air * Ability to extract in the overflow room * The high intensity than the natural * Less dependence on the quality of channels Kiv Kiv valve in the system Statvent. Valve Kiv need to ensure the supply of fresh air in a dwelling or other premises with permanent people. This Kiv protects the premises of insects, noise, dust and adjustment of the incoming air. The valve is a plastic tube outer diameter of 133 mm and a length of 1 meter. (Undercut depending on the thickness of the wall.) Tube is inserted into the outer wall of the building and the street-side rose cast aluminum grille with mesh. In the tube is heat-insulation. Indoor put special headroom of white plastic with a filter and valve allowing to adjust the air flow Can say that Kiv 125 is a modernized version of windows. Outdoor grille with mesh holds the leaves, poplar fluff, insects, heat insulation prevents sprawl cold in the thickness of the wall and reduces street noise. The flap in the valve regulates the amount of headroom the incoming air. The circulation of air in the premises. In buildings equipped with system Statvent air flows from the premises in which the valves are installed Kiv premises in which there is an extract air. Air movement occurs through the interior openings, open doors, specially installed in the doors or piers peretochnye lattice, the crack under the doors. On the way air traffic absorbs harmful substances released in the premises and then through the exhaust system is removed to the street. Ventilation Regulation system Statvent. The total air in the building where the system does Statvent depends on the intensity of extraction. Therefore, adjusting the exhaust fan or fans can change the performance of the system as a whole. By adjusting the valve in the valve Kiv can adjust the intensity of the ventilation facilities in which Kiv installed. We can say that the system Statvent - very simple and well-regulated system that allows to take into account almost all individual characteristics. The ideal mode of operation for the system Statvent is a permanent job. Additional convenience makes it possible to reduce the performance exhaust fan for a long period of absence of persons on the premises. This will save energy without compromising ventilation. Constantly working ventilation system ensures constant high quality of air. Ventilation system with periodic ventilation allows temporary deterioration of air quality. The system, which is activated manually forcing the user to think about include whether ventilation, and if clearly felt that we should include the ventilation in the room uncomfortable that means having a system of people breathing all this time, poor-quality air. Thus, continuously operating ventilation system is always providing the highest quality of air, to justify the money invested in ventilation. The combination of Statvent and air conditioning can give excellent results, providing a room air quality with the right temperature. When the device system Statvent on the facades of buildings are not installed, no external components, except for small lattices inlet valves. Color of the lattice can always choose the color of the facade.