Introduction

A particulate air filter is a device composed of fibrous materials which removes solid particulates such as dust, pollen, mold, and bacteria from the air. Polyacrylonitrile (PAN) is a versatile polymer used to produce large variety of products including ultra-filtration membranes, hollow fibers for reverse osmosis, fibers for textiles, oxidized PAN fibers. Nanofibers with smaller thickness and higher surface area than that of regular fibers, have enormous applications in filtration. To do it, electrospinning is one of the most attractive and effective processes in the production of continuous nanofibers from synthetic and natural polymers.