The Dust Defender intake filters are the perfect solution for protecting crops from the intrusion of unwanted particles such as pollen, mold spores, odors, or insects. The combination of an effective layer of activated carbon with a fine mesh creates a strong barrier against all particles and helps keep our interior as aseptic as possible. The Dust Defender is attached to the air extractor's inlet with a simple yet effective Velcro closure, allowing us to easily remove and replace the filter for cleaning.