Prof. German Drazer, Prof. Edward DeMauro and students win EPA Cleaner Indoor Air During Wildfires Challenge. The proposal is a novel application of existing industrial technology that would be modified and scaled down for residential use. The team proposes to develop a two-phase air filtration device. The first phase uses a wet-scrubber method to capture particles within aerosolized water droplets followed by a second phase involving a series of stainless-steel wire filters, which are removable and washable. The team anticipates the PM2.5 removal effectiveness will be approximately 94 percent in a 1,200 cubic foot room within one hour of operation. The modular design developed by the team could be adapted to different users and needs. The materials cost for building a prototype is estimated around $100.