Pop filters are just among the basic device in any vocal work. A microphone pop filter is basically a wind screen that is put in in the middle of the mic and the vocalist. It is a crucial piece of [device|equipment} because of its potential to eliminate Ps, Bs, Ts and Ds from popping. br Popping is an unpleasant sound produced when saying the mentioned plosives and can let your vocals sound low quality. A small piece of device such as this can set you back a little but will go a long way in cutting time and money for editing or redoing your work.