As biotechnologies are fast developing, more filtration systems are using it to overcome air challenges. Biofiltration systems are fairly simple to operate and offer cost-effective solutions for treating malodorous compounds and water-soluble volatile organic compounds (VOCs). For odor removal applications, biofilters rely on a biofilm and the bacterial action in their recirculating waters to properly function; whereas most biofilters are challenged to maintain proper moisture and reduce pressure drops, Purafil’s new Biological Air Treater (BAT) offers the solution to optimum biotrickling filter operation.