... air flow; Performance: 1)Nontoxic, odorless, disposable, reasonable filter structure stretching the service life of product,Small resistance, high ... longer application life, good function and good looking bag filter. ZF Bag Filter Materials' Models and Parameters: Model Efficiency % Dust holding ... ±1Bag filterZF-E-F90.1989910030120Lt YeDk Ye4±1Bag filter Certificated air ventilation filter material