limited space inside, our Slim Line Filterfans ® offer the perfect solution. Another option is colour, in addition to our grey RAL 7035 we also have black RAL 9011 Filterfans ® and exhaust filters. We can even [...] their machine design. Slim Line Filterfan IP 55: Powerful, compact design, high protection against dust and against water jets from any angle. RAL 9011 Indoor Filterfan IP 54: High protection against dust [...] 9011 IP 55 Slim Line Filterfans®. Air flow: 500–725 m³/h. size protection system resistant, RAL7035 tool-less filter mat changing tool-less mounting RAL 7035 Slim Line Filterfans PF 65.000 SL PF 67.000