Mechanical-system integration
Box, duct-mounted and return-air product structures support AHUs, air ducts, fan-coil return positions and fresh-air systems.
HVAC modulesPatent-backed IAQ Technology
Anenj's technology portfolio connects purification modules, duct and return-air structures, patented odor-control equipment, fresh-air products and IAQ monitoring into project-ready solution families.
System concept visual
Technology Stack
Technology selection is matched to installation position, pollutant target, pressure conditions, maintenance access and the selected product configuration.
Box, duct-mounted and return-air product structures support AHUs, air ducts, fan-coil return positions and fresh-air systems.
HVAC modulesProduct families can use filtration and electrostatic configurations according to the selected module, airflow and project conditions.
Duct productsPatented wall-mounted deodorizer structures support dedicated treatment for restrooms, waste rooms and high-odor service areas.
Odor-control productsIAQ monitoring options support measurement, local display and communication for building owners and operation teams.
Monitoring systemRecognized Product Technology
The nano micro-electrostatic high-efficiency filtration module is included in the China Society of Refrigeration 2023 Energy-saving and Ecological Environment Product Catalogue.
Product recognition recordPatent Register
The register below is based on patent certificates supplied by Anenj. Patent scope and product applicability should be reviewed against the relevant certificate and model.
| Type | Patent title | Patent number | Technical area |
|---|---|---|---|
| Invention | Wall-mounted Deodorizer | ZL 2020 1 0192215.3 | Odor-control equipment |
| Utility model | Wall-mounted Deodorizer | ZL 2020 2 0343435.7 | Odor-control structure |
| Utility model | Ceiling-mounted Constant-oxygen Air Purification Box Structure | ZL 2020 2 0341687.6 | Ceiling purification structure |
| Utility model | Ceiling-mounted Four-way Air Purifier | ZL 2020 2 0344745.0 | Room air distribution |
| Utility model | Multi-media High-air-volume Air Purifier | ZL 2020 2 0344671.0 | High-air-volume purification |
| Utility model | Return-air Dust-removal and Sterilization Structure | ZL 2020 2 0341735.1 | Return-air purification |
| Utility model | Duct-mounted Dust-removal and Sterilization Device | ZL 2020 2 3292291.6 | Duct purification |
Certifications, Patents & Recognition

Drafting participation for the group standard covering air purification and disinfection devices used in building ventilation systems.

Air-purification equipment verification covering listed ANJ model families, issued 20 June 2024 with an expiry date of 19 June 2030.

Quality, environmental and occupational health and safety management system certification records.
Engineering Selection
AHU, duct, return-air, ceiling, wall or occupied-space deployment.
Available airflow, dimensions and pressure allowance for the host air system.
Particles, odor, VOC-related concerns, microbial-control requirements or visibility.
Filter replacement, cleaning, service space and long-term operating responsibility.
Status, alarm, communication and monitoring requirements where applicable.
Confirm which certificates, reports and product documents are required by the destination project.
Performance, optional functions, filtration configuration, communication functions and compliance scope vary by model. Final technical claims should be confirmed in the quotation, product specification and applicable test documentation.
Technical Evaluation
Send the installation position, airflow, target issue and destination market so the team can identify the relevant product family and supporting records.