For duties that would be beyond the capacity of industry standard products to meet in terms of endurance, dimensional restraint or special features. Over 7000 variants exist for a wide range of supply voltages and frequencies.
Fans of the required quality demand design innovation, exotic materials, and precision manufacturing techniques to achieve close tolerances and high MTBF.

Most products carry UL, CSA, and VDE recognition, and comply with European Directives concerning EMI and electrical safety standards.

Cooling of defence electronic, navigation and air conditioning systems, as found in military vehicles, on-board ships and aircraft, including helicopters.

Traction equipment calling for rail standards, special electrical supply, high humidity, and resistance to shock loads and vibration. TGV and Eurostar installations.

Industrial systems having special electrical supplies, difficult environment or enhanced ingress protection.

Commercial electronic cooling requiring maximum performance from a given fan size.

Telecom cabinet cooling with 24V and 48Vdc supplies.

Air filtration equipment for nuclear shelters