Knitting industry is one of the flourishing business in India in recent times. This knitting industry provides huge collection of knitted fabrics in different forms and styles. Apart from the fabrics they also provide employment to lot of people. A drastic problem in this industry is the fibre fly generation. These fibre fly are generated in the knitting machine from cotton yarns in different zones of the knitting machine which may be due to friction, yarn breakage and bending of yarns at the needles, sinkers, guides and other regions. They may also be produced due to rotational movement of yarn in the cone unwinding and guiding zone, vibrations during the movement of yarns and friction occurring due to interaction between yarns. At present these fibre fly are removed by using large blowers in large scale industry. These blowers are not affordable in small scale industries due to the cost of blower, power consumption after installation, etc... People exposed to these fibre fly may suffer from serious diseases which may have acute and chronic symptoms. This is a serious problem which can be overcomed by using the dust (fibre fly) collector. It can be used by all types of knitting industry and also removes maximum dust produced. This paper is about the dust collector in knitting Industry. This paper briefly discusses about the technique used in the fibre fly collector for removing the dust in knitting industry and how to avoid the risk of air pollution and effect of fibre fly.