Features: *10pc Air filter G3 ISO: Set of 10 replacement filters with a diameter of 110 mm, designed to fit For Helios ventilation valves. *Higher quality replacement: These filters offer a higher filter class (G3 instead of G2) compared to the accessory No. 03058, providing improved filtration efficiency. *Effective dust retention: These coarse dust filters effectively capture dust particles in the air, keeping the ventilation system clean. *Recommended replacement: It is recommended to replace the filters every 3 months for optimal performance. *Specifications: These filters meet the G3 filter class according to DIN EN 779:2012 (old) and ISO Coarse 50% according to DIN EN ISO16890:2016. They have a diameter of 110 mm, made of synthetic PET fibers. The filters have a progressive structure, are binder-free, meet fire protection class F1F1K1 (according to DIN 53438), and can withstand up to 100% relative humidity and temperatures up to 100 °C. Specifications: *Product Name:10pc Air filter G3/ISO For Helios ELF-DLV 125 110 mm *Material:Synthetic fibers made of PET *Size:110 mm diameter *Color:white Package Content: 10 Air filter Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. 10pc Air filter G3 ISO: Set of 10 replacement filters with a diameter of 110 mm, designed to fit For Helios ventilation valves. Higher quality replacement: These filters offer a higher filter class (G3 instead of G2) compared to the accessory No. 03058, providing improved filtration efficiency. Effective dust retention: These coarse dust filters effectively capture dust particles in the air, keeping the ventilation system clean. Recommended replacement: It is recommended to replace the filters every 3 months for optimal performance. Specifications: These filters meet the G3 filter class according to DIN EN 779:2012 (old) and ISO Coarse 50% according to DIN EN ISO16890:2016. They have a diameter of 110 mm, made of synthetic PET fibers. The filters have a progressive structure, are binder-free, meet fire protection class F1F1K1 (according to DIN 53438), and can withstand up to 100% relative humidity and temperatures up to 100 °C.Specifications: