Drop Safe Filters DS-G4-300 and -600 Filtrair Drop Safe (DS) rigid filters serve as very effi-cient pre-filters in air intake systems of combustion engines, in any environmental condition (including off-shore, marine) and in any climate (including tropical). They efficiently remove airborne particulate matter but also snow, mist and fog, acting as a filter and a coa-lescer in one. DS rigid filters are specially designed for the elimination and drainage of free water and air borne salt crystals. Where subsequent final filters are placed, they protect them not only from dust but also from salt and water, thus significantly prolonging their life and increasing their operational safety. Unique - combined coalescer and particle filter in one Also for extreme environments: high moisture and water mist content, high velocity, offshore, marine, ... Patented sealed boot pocket design - coalesces water inside the pockets and drains it out upstream of filter Self supporting, leak-free welded pockets - stay rigid when wet and in turbulent air - eliminating shedding > FILTRAIR DROP SAFE RIGID POCKET FILTERS Aerodynamic wedge-shape, tubular pocket spacers - minimum flow resistance and maximum dust holding Pockets water tight integrated in injection moulded, impact-proof PU header - burst strength of 6000 Pa > Unique, proprietary, progressive Filtrair filter media with special hydrophobic treatment Filtrair manufactures its own thermally bonded syn-thetic media for the DS rigid pocket filters. The depth-loading media is of progressive structure for high dust holding capacity and contains an added hydrophobic treatment and tackifier throughout the medium depth to repel water and retain captured particles. Filtrair DS filters may be disposed of by incineration Filter range independently tested > DS-G4-300-600-6-E-0902 Available in filter classes G4, F5 and F6 per EN 779 >