No Face Fit Required Simple starter kit with all the component parts to get you up and running. Simply add the required headtop  The 2 selectable flow rate options - 185l/mn and 205l/mn - offer more comfort to the user Easy-to-use, versatile, respirator systems for particulate environments Highly Efficient filter captures hazardous dust, mist and fume plus options for nuisance level gases and vapors Slim, lightweight balanced design for comfort Intelligent lithium ion battery quickly charges, has no memory effect and incorporates useful charge indicator Electronic audible and visual low air flow and low battery alarms as well as battery charge indicator /particulate filter loading status indicators and airflow indicator Easy to adjust and maintain Battery charge indicator on the battery