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Product Name	ePM1 80% F9 High-Efficiency Box Filter for Livestock Houses
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Product Overview	The ePM1 80% F9 High-Efficiency Box Filter for Livestock Houses is a compact, depth-loading air filtration solution designed for high-volume ventilation systems in commercial pig farms, poultry houses and other controlled-environment livestock facilities. The filter uses multiple pleated media packs arranged inside a rigid cassette-style frame, providing a large effective filtration surface within a compact installation depth. This design supports efficient removal of fine airborne particulate matter while maintaining ventilation airflow required for animal housing. In livestock projects, the filter can be installed as a high-efficiency stage in filtered air inlet systems, central ventilation rooms, modular filter walls or air-handling sections. It is particularly suitable for pig farm construction and biosecurity-oriented ventilation projects where particle filtration, energy efficiency and reliable airflow are important design considerations.
Key Features	ISO ePM1 80% filtration classification for efficient removal of fine airborne particles. Equivalent F9 classification according to the former EN 779:2012 standard. Compact cassette structure provides a large filter media area within limited installation space. Low initial pressure drop supports energy-efficient livestock ventilation design. High dust-holding capacity helps support stable filtration performance between service intervals. Rigid frame construction provides stable handling during transport, installation and replacement. Suitable for supply-air, recirculation and project-specific ventilation filtration systems. Compatible with pre-filter stages for multi-stage livestock air filtration. Suitable for modular filter walls and centralized air inlet chambers. Multiple standard sizes are available, with project-specific configurations available upon request.
Structural Components	High-Efficiency Pleated Media: Fine-particle filtration media is formed into closely controlled pleats to increase effective filtration area. Multi-Pack Cassette Structure: Several pleated media packs are positioned inside the filter body to achieve a compact, high-capacity filtration configuration. Rigid Plastic Frame: The stable outer frame protects the filter packs and supports safe installation in filter housings and modular filter walls. Media Sealing: Filter packs are securely integrated into the frame to minimize air bypass around the filtration media. Clip-On Connection System: Compatible configurations can allow filters of different filtration stages or depths to be combined, supporting compact multi-stage filtration arrangements. Mounting Interface: The cassette-style structure is suitable for standardized filter holding frames or customized livestock ventilation support structures.
Working Principle / Structural Principle	Ventilation fans create an airflow through the livestock house air inlet system. Incoming air passes through the pleated filtration media, where suspended particulate matter is captured within and on the depth-loading filter structure. The extended pleated media area allows the required ventilation volume to be distributed across a larger filtration surface. This helps maintain a favorable balance between particle filtration efficiency, dust-holding capacity and airflow resistance. In a multi-stage system, a coarse or medium-efficiency pre-filter can remove larger dust particles before the air reaches the ePM1 80% final filtration stage. This arrangement can help protect the high-efficiency filter and support longer service intervals in dusty farm environments.
Technical Specifications	Filter Type High-efficiency cassette / box filter ISO 16890 Classification ISO ePM1 80% EN 779:2012 Classification F9 Standard Size 1 592 × 592 × 292 mm Nominal Airflow - Size 1 3,400 m³/h Weight - Size 1 Approx. 5.5 kg Standard Size 2 592 × 490 × 292 mm Nominal Airflow - Size 2 2,700 m³/h Weight - Size 2 Approx. 4.5 kg Standard Size 3 592 × 287 × 292 mm Nominal Airflow - Size 3 1,500 m³/h Weight - Size 3 Approx. 3.2 kg Initial Pressure Drop Approx. 97 Pa at specified nominal airflow Energy Efficiency Class A according to EUROVENT 4/21 for the referenced filter configuration Other Dimensions Customizable / available upon request Livestock Project Airflow According to project requirements Operating Conditions Designed according to local climate and farm conditions
Applications	Commercial sow farms and breeding pig facilities Farrowing houses and nursery pig buildings Boar studs and high-biosecurity swine facilities Fattening pig houses with mechanical ventilation Broiler, breeder, layer and pullet houses Filtered livestock air inlet rooms Centralized farm ventilation systems Positive-pressure and negative-pressure ventilation projects Steel structure pig houses and poultry buildings New farm construction and ventilation retrofit projects
Customization Options	SHEWUYOU can configure the filtration solution according to livestock house ventilation calculations and project requirements. Filter dimensions: Customizable Filtration efficiency: According to project requirements Airflow capacity: According to project requirements Frame and installation interface: Available upon request Filter bank arrangement: Customizable Prefilter combination: Available upon request Sealing and gasket configuration: According to project requirements Supporting steel frame or filter wall: Customizable Ventilation system matching: Designed according to local climate and farm conditions
Installation & Maintenance	The filter can be installed in modular filter housings, air inlet chambers, central ventilation rooms or purpose-built filter walls. Installation frames should support the filter evenly and provide sufficient sealing pressure to minimize unfiltered air bypass. For commercial livestock houses, filter-bank sizing should be coordinated with the total design airflow, fan capacity and allowable system static pressure. The ventilation system should be checked at both clean-filter and loaded-filter operating conditions. In areas with high outdoor dust concentrations, a pre-filter stage is recommended before the ePM1 80% filter. The manufacturer's cassette concept also supports combination with additional filtration stages in compatible configurations. Routine inspection should include checking for dust loading, physical damage, sealing condition and abnormal airflow resistance. Differential pressure monitoring is recommended for large commercial farm installations. Replacement intervals depend on local air quality, ventilation volume, animal-house operating conditions, prefiltration performance and the permissible final pressure drop of the ventilation system.
Project Cases	Commercial Pig Farm Filter Wall: Multiple cassette filters can be arranged in modular rows inside a dedicated air filtration corridor to provide high-volume filtered air for mechanically ventilated pig houses. Breeding Farm Biosecurity Upgrade: Existing ventilation inlets can be redesigned with pre-filters, ePM1 high-efficiency filters, sealed mounting frames and differential pressure monitoring according to available fan capacity. New Steel Structure Pig House: Filter area, fan capacity, inlet opening size, service access and structural supports can be coordinated during the livestock building design stage to create an integrated filtration and ventilation system. Multi-House Livestock Project: Standardized filter modules can simplify spare-parts management and routine maintenance across multiple animal houses within the same farm complex.
Product FAQ	Q: What does ePM1 80% mean? A: It is an ISO 16890 filtration classification indicating high efficiency for particulate matter in the PM1 size range under the applicable standard test procedure. Q: Is F9 the same as ePM1 80%? A: F9 is the classification listed under the former EN 779:2012 system for the referenced filter, while ISO ePM1 80% is its classification under ISO 16890. The two standards use different test and classification methods. Q: Can the filter be used in pig house air filtration systems? A: Yes. It can be configured as a high-efficiency filtration stage in pig house air inlet systems when the required airflow, static pressure, filter area and installation structure are properly engineered. Q: Should a pre-filter be installed? A: A pre-filter is recommended for many dusty livestock environments because it captures larger particles before they reach the high-efficiency filter. Q: Can filter dimensions be customized? A: Standard dimensions are available, while project-specific dimensions and mounting configurations can be evaluated upon request. Q: How should the correct filter quantity be calculated? A: Filter quantity should be based on required livestock house airflow, selected design face velocity, filter resistance, fan performance and allowable final system pressure. Q: Can this filter be used for new pig farm construction? A: Yes. It can be incorporated into steel structure pig houses, centralized ventilation rooms and dedicated filtration corridors during the building design stage.
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