Bristles on the end of each blade, εPS closes the gap between the shroud and the fan tip. This fan blade extension minimizes turbulence in the blade, improves fan performance and reduces noise. Compatible with all of the company’s fans, the fan-blade extensions are suitable for operating temperatures up to 280°F (120°C). Static strength tested for durability in the toughest environments, they can withstand loads of more than 1016 N/in (40 N/mm), thereby performing at maximum operating speed for PAG fans. Fatigue testing shows that performance and noise remain unchanged even after 400,000 impacts, according to the company.