Currently, no US standards exist to certify pneumatic vacuums for safe use in hazardous locations. However, Europe has developed standards known as ATEX Directives for such certification. Guardair engaged a UK-based, nationally recognized testing laboratory to certify our Hazardous Location Pneumatic Vacuums to the following ATEX standards:

II2 GD c IIC T6*

* Equivalent to National Fire Protection Association 70: NEC Rating:
Class I   Division 1**   Groups A, B, C, D T6
Class II   Division 1     Groups E, F, G T6
Class III
** Zone 1 only