Technology
An air curtain above an open inside door provides climate separation of the two rooms. Whilst developing the IsolAir2, Biddle chose to use its well-known outlet discharge pattern, the Double Rectifier. The IsolAir2 is equipped with radial backward curved fans which homogeneously distribute the air across the whole discharge opening, producing high efficiency and comfort levels. If a conventional air curtain without a rectifier discharges air at the same velocity as a unit with a Double Rectifier, the downward penetration is tangibly less. The air stream does not reach the floor, and the open door is not covered off properly. Consequences include draught, loss of energy and comfort complaints.