Fiber-Max™ biofilter media is a proprietary blend of organic materials for the removal of complex odors and VOCs. This fibrous cellular substrate material is manufactured only from trees and large tree branches.

Fiber-Max Close Up

Details and Specifications

No yard/construction/demolition waste, or trees with known inhibitors or germicidal effects on microorganisms are used.

Bulk Density (Dry): 20 lbs/ft3

Typical EBRT: 45–60 sec

Differential Pressure: 0.25"/ft media

Face Velocity: 3–6 fpm

Fiber-Max Installation

Media Selection and Design Support

To utilize biological organisms and mitigate wastewater odors, it is necessary to understand two basic biochemical processes—autotrophic and heterotrophic, and their opposing requirements and ecosystems.

Autotrophic bacteria consume inorganic compounds as an energy source and receives carbon from carbon dioxide. Heterotrophic biological organisms must obtain both energy and carbon from the organic food they consume. GES Biotek is pleased to offer site-specific media selection and design support to create the ideal green environment for your application.

Case Studies

Check out what GES media has done for these installations.

Biofilter remediation and media replacement, Chico, CA

Biofilter Media Replacement, Chico, CA

Fiber-Max™, Crater-Max®

GES Biotek restored two overgrown biofilters to full functionality by replacing dilapidated components and adding fresh media.

sprinkler bed

Monte Verdi WWTP, Clovis, CA

Fiber-Max™, Crater-Max®

GES Biotek supplied and installed filtration media and components for the plant's new concrete biofilter.

Enhanced Cell-Max installed at Eastern Municipal Water District, San Jacinto, CA

Eastern Municipal Water District, San Jacinto, CA

Enhanced Cell-Max™, Crater-Max®

GES Biotek installed a dual-media ecosystem to properly distribute the foul air and remove all complex odors and VOCs.

Additional Products



Rigid, acid-resistant media designed for the treatment of high levels of H2S in Bio-Scrubbers®.



Specifically engineered and processed for chemical resistance, size, and optimum surface area for H2S removal.

Enhanced Cell-Max

Enhanced Cell-Max™

All of the benefits of high-performance engineered biofilter media, but at a quarter of the weight.

GES Nutrients

GES 1587 Super Nutrients

Enhance the growth of acidithiobacillus thiooxidans and ferroxidans microorganisms in a biological scrubber ecosystem.