Bubble bead filter particulate filter (EPS foam plastic filter beads) is a polystyrene foam particles join the liquefied petroleum gas and made of beads shaped small white ball, porous developed large specific surface area, with strong absorption capacity, is a light filter. Bulk density 80-100kg/m3, porosity of about 50%. Commonly used specification: 0.5-1.0mm 0.6-1.2mm 0.8-1.2mm 0.8-1.6mm 1.0-2.0mm 2.0-4.0mm 4.0-8.0mm 10-20mm