I found a thread from 2014 somewhat related to this... Due to my continuing sinus problems, I decided to buy the 3M Airstream helmet / respirator. I ordered the extra face shield protector. Some of you might remember I posted here how simple green ate my uvex Bionic polycarbonate shield. I want to ask those of you who have an Airstream, how do you clean the face shield, do you have the protector? I ordered the battery and the smart charger, but Alan Zenreich will help me with the set up to be able to use a Costco battery for iPads to use as a spare... My wife says I'm 20 years late with this purchase... I had to agree... Aloha