When opening and closing this glass sliding door, hardly any air movement is created. In situations with conditioned or contaminated air behind the door, this is very important. The airtight seal maintains the overpressure up to at least 100 pascal without leakage (ANSI/UL1784).
The unique closing system ensures that the door also retains its airtight seal in case of significant under- or overpressure. Uncontrolled air flow through your doors can thus be prevented