ATEX and EX fans are axial flow fans optimised for installation in hazardous environments with high requirements for safety. The ZerAx® fans for ATEX or EX uses are compact, robust and well suited for operation in conditions unhealthy for humans. They display the same qualities as the standard versions. The ZerAx® fans are available with impeller sizes from O250 to O1250 mm, airflow rates from 0.1 to 110 m3/s and pressure increases up to 3400 Pa.