Many commercial premises and office buildings which require permanently opened doors encounter a problem of undesirable influx of either cold or hot air. The application of GUARD air curtain eliminates this problem and ensures the separation of climatic conditions both inside the building and outside. Please find the selection criteria of GUARD devices below.






The door frame width cannot be larger than the width of the air stream. GUARD air curtains are available in three modular lengths 1m, 1,5m and 2m. Notice that particular modular elements may be combined if needed and as long as they are possible to be applied. (1m, 1.5m, 2m modules)   The height of assembly – airflow range. The maximum air stream for horizontal mounting (door height) is 3,5 m.   Heat output should be adjusted to the inner temperature of a room, wind force and its direction outside the building and specificity of a room. The inside temperature near the door is the main criteria of heat output regulation.