First developed protection filters under the PreVent® tradename. By Pepper Group Posted December 30, 2021 In 1 0 First developed protection filters under the PreVent® tradename. Recent PostsSeeds of Discontent: How Cottonwood Influences Air Quality in Rural AreasBehind Closed Doors: Urban Air Quality’s Impact on Indoor AirHow Permatron Helps Keep Data Centers Running SmoothlyLet’s Demystify Mist Eliminators. Here’s Why You Need Them.