Most of the waste gas produced by the recycled plastic pellet machine is volatile organic waste gas and malodorous gas. The waste gas contains toxic substances and has an obvious peculiar smell. A plastic recycling filtration system，also known as an air purifier, is the special equipment for purifying soot and waste gas during produce plastic products. A waste gas filter is an important machine in the plastic pelletizing processing line. This machine can reduce the damage to the surrounding environment during plastic processing.