product catalog
Air conditioning box functions and configurations
Focusing on air filtration, temperature and humidity treatment and air supply needs, functional sections are combined according to project working conditions, and suitable air handling unit configurations are matched.

It is suitable for projects that require centralized processing of fresh air, return air or mixed air. Functional sections such as filtration, cooling, heating, humidification and air supply can be combined as required.

For clean room air treatment projects, combined with filtration requirements, temperature and humidity conditions, box sealing and maintenance requirements, it is configured together with the terminal air supply system.

It is used for filtration and temperature and humidity treatment of outdoor fresh air. The processing capacity and functional configuration are determined according to the fresh air volume, outdoor design conditions and air supply targets.

Used for clean room air supply, the configuration is determined based on the exhaust air volume, pressure difference target and air supply status, and operates in coordination with the FFU or other terminal equipment in the project.

It is used for filtration, cooling and air supply of the return air circulation system, focusing on checking the return air status, processing load, circulating air volume and system resistance.

It is suitable for production and testing environments that require temperature and humidity adjustment and air filtration. The configuration is determined according to the temperature and humidity target, allowed fluctuations and load changes.

It is suitable for machine rooms with horizontal layout space and arranges functional sections based on the length of the unit, the direction of the air duct, the transportation channel and the maintenance side.

It is used for filtration and temperature and humidity treatment of outdoor fresh air. The processing capacity and functional configuration are determined according to the fresh air volume, outdoor design conditions and air supply targets.

It is suitable for equipment spaces with hoisting conditions, focusing on confirming the available net height, structural load-bearing, vibration reduction, drainage and access opening locations.

For projects that are difficult to match with standard sizes or conventional layouts, customized solutions can be communicated based on the installation space, air treatment process, interface direction and control requirements.
| Selection items | Conditions to be provided | Selection items | Conditions to be provided |
| Air volume and fresh air ratio | Total supply air volume, fresh air volume, return air volume | External static pressure | External air ducts, valves and end resistance |
| Air intake status | Outdoor design conditions and return air status | Air supply target | Temperature, humidity or dew point requirements |
| Hot and cold source | Available in cold water, hot water or steam conditions | air filtration | Level, resistance and installation location |
| Installation space | Outline boundaries, clear height and transportation channels | Interface direction | Air inlet and outlet, pipe and drainage locations |
| Fans and power supplies | Working point, speed regulation and on-site power supply | control interface | Start, stop, monitor, alarm and linkage |
| maintenance conditions | Access side and component replacement space | Project information | Drawings, parameter tables and acceptance requirements |

| Application direction | Selection points of concern |
| Semiconductor and Electronic Manufacturing | Air supply, filtration, temperature and humidity and terminal system matching |
| Precision Manufacturing and Optical Instruments | Temperature and humidity targets, load changes and air supply organization |
| Biomedicine and Medical Devices | Project filtration requirements, cleaning maintenance and new exhaust coordination |
| Food and cosmetics workshop | Fresh air supplement, air filtration and maintenance conditions |
| Laboratory and testing areas | Fresh air volume, exhaust air supply and operating period |
| Renovation of existing systems | Original machine room space, air duct interface and control compatibility |


Motor and fan synergy
Aili Industrial has motor manufacturing and independent fan R&D and production capabilities, and can check the fan configuration based on the design air volume, internal resistance, external static pressure and operating mode.

Control system software and hardware development
Control system software and hardware development: Can communicate start and stop, speed regulation, operating mode, temperature and humidity monitoring, filter pressure difference prompts and equipment linkage based on project needs. Specific functions and communication interfaces are confirmed in the planning stage.

Filter matches the whole machine
Determine the structure based on functional sections, insulation, drainage, air inlets and outlets, and maintenance requirements. The technical and manufacturing resources of Suzhou and Guangde are coordinated to provide support for project selection, non-standard development and batch matching.

Filter matches the whole machine
Relying on the air filter manufacturing capabilities, we simultaneously confirm the filtration level, rated air volume, resistance, installation sealing and replacement space, so that the filter configuration is consistent with the box and air supply conditions.

Quality inspection and process control
Combining component inspection, production process inspection and complete machine operation testing, check key items such as air volume, operating status, filter installation and sealing according to project requirements, check whether product configuration and assembly quality comply with the confirmation plan, and provide a basis for equipment delivery, installation, commissioning and subsequent maintenance.

Communicable customized projects
Box shape and segmented functional segment combination and sequence air inlet and outlet and pipe connection direction, maintenance side and maintenance space filtration configuration and sealing operation mode and control interface.
Project support advantages for large factories
Aili Industry has a 30,000-square-meter production base. The production area covers motors, fans, filters, control systems, sheet metal processing, complete machine assembly, product testing, and finished product management. For air conditioning box projects, complete site and manufacturing zoning provide the organizational basis for raw material entry, filter production, structural component processing, process inspection, finished product storage and packaging delivery.
The project value of large-scale production bases is mainly reflected in multi-category collaboration, parallelization of standard and non-standard products, batch project organization, and supporting communication of filters and clean equipment.


Sheet metal processing

Whole machine assembly

Product testing

Finished product area
Frequently Asked Questions about Air Conditioning Box Selection
Q1: What is the difference between an air conditioning box and an air handling unit?
A: Air-conditioning box is a common product name, and air handling unit corresponds to the English AHU, which is a wider equipment name. Whether it is combined, handles fresh air or return air, and whether it has temperature and humidity processing functions needs to be confirmed with the specific configuration.
Q2: How to choose between air conditioning box and fan box?
A: When the main demand is to transport air, you can focus on the fan box; when centralized processing such as filtration, cooling, heating or humidification is required at the same time, the air conditioning box and its functional section configuration should be evaluated. It is ultimately determined based on system tasks and parameters.
Q3: What is the relationship between MAU and AHU?
A: AHU is the collective name for air handling units; MAU usually refers to the unit responsible for air supply. The clean room MAU needs to be designed based on the outdoor air condition, supplementary air volume, exhaust air volume and pressure difference target, and cannot directly apply the load and configuration of the return air unit.
Q4: Does the air-conditioning box come with its own refrigeration system?
A: You cannot judge based on the name alone. Air-conditioning boxes using cold water coils need to be equipped with an external cold water system. The form of cold and heat sources, connection conditions and control facilities should be specified during model selection.
Q5: Can the air-conditioning box reach the clean room level by installing a HEPA filter?
A: The clean room grade also depends on conditions such as terminal layout, air flow organization, return and return air volume, sealing, personnel and process load, etc., and should be confirmed through overall design, debugging and testing.
Q6: Can I determine the model of the air conditioning box only by knowing the air volume?
A: Air volume is only a basic parameter. It is also necessary to confirm the external static pressure, inlet and outlet air conditions, cold and heat sources, filter configuration, installation space and operation requirements in order to further calculate the unit size and processing capacity.
Q7: Can the air conditioning box size and air inlet and outlet direction be customized?
A: Aili Industrial can communicate the overall dimensions, functional section layout, interfaces and maintenance direction according to the project conditions. When sizing, you need to leave space for filter replacement, fan inspection, and other component maintenance.
Q8: What supporting support can Aili Industrial provide for air conditioning boxes?
A: Aili Industrial can combine motors, fans, filters, control systems, sheet metal and complete machine assembly capabilities to provide selection and customized matching, and can communicate with FFU, HEPA and ULPA filters, high-efficiency air outlets and chemical filters simultaneously with system interfaces.
Customized chemical filter solutions for your special needs
Aili Industry - From air filters to clean air supply equipment, it provides product matching and technical support for clean rooms and production equipment.
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This article explains that when the photoresist is sensitive to alkaline gases, the filtration target should be determined based on the specific photolithography process, material and equipment requirements. General deodorization standards or some universal AMC values cannot be directly regarded as requirements for the entire photolithography area. The article follows four steps: clarifying sensitive objects and detection calibers, assigning targets to actual protection locations, applying check points, verification and subsequent use. It points out that ammonia and amines should be distinguished and the actual use location of photoresist should be verified. -
This article explains that the chemical filtration section of the air conditioning box can be evaluated to handle acid gases and organic gases at the same time, but the media must be configured for specific components and the mixing load must be checked. The multi-gas name alone cannot guarantee that all acid gases and organic matter are effective. The article starts with four steps: first determining whether the filter has passed through the same filter section, comparing combinations and system conditions, application check points, verification and subsequent use, and points out that internal and external gas sources should be handled separately when they come from different sources. -
This article explains that the same project can evaluate the use of different chemical filter media, but their respective goals, combination sequence, environmental suitability and maintenance methods should be clearly defined. Putting different media together does not mean that the efficiency and capacity of mixed gases can be simply added. The article is divided into four links: distinguishing stratified and mixed configurations, verifying target gases item by item, application check points, verification and subsequent use, and points out that the combined configuration needs to be confirmed separately for each target gas. -
This article illustrates that cleaning agent safety data sheets can provide clues to the composition and properties of chemical filters, but they cannot replace on-site air testing. When selecting, you also need to understand the cleaning method, temperature, dosage, exhaust air and the actual gas entering the filter section. The article follows four steps: forming an investigation direction from chemical information, connecting documents with actual use, applying check points, verification and subsequent use. It points out that the occupational exposure limits in SDS cannot be used as filter outlet concentration targets. -
This article explains that there is still an odor after installing a high-efficiency filter in a clean room. The common reason is that the odor comes from gas or steam, and HEPA is mainly responsible for particle filtration. The article is divided into four links: qualified particles do not mean gas control, locating the source along the air path, application check points, verification and subsequent use. It points out that increasing the particle filtration level cannot automatically solve molecular pollution, and requires separate detection objects and treatment plans. -
The air volume in the chemical filter quotation may be the rated air volume of a single module, or it may be the designed processing capacity of the entire set. The caliber needs to be clearly stated in the quotation. The number of modules, series-parallel relationship and actual allocation determine the system capability and cannot simply be added up by quantity. -
The chemical filter procurement specification should include target gas, air volume, environmental conditions, structural interfaces, performance basis and acceptance method. A complete description will allow the supply to correspond to project requirements, and avoid just writing about dimensions and general removal rates. -
When evaluating chemical filtration effects in a clean booth with surrounding open areas, it is necessary to focus on checking the entry of untreated air and local airflow coverage. Good performance at the outlet of the filter section does not necessarily mean that the gas concentration in the entire open area has been controlled. -
When the factory is close to the pollution source, the air inlet migration and chemical filtration should be compared with the measured load at the inlet, wind direction and system conditions. Improving the input location can reduce partial loads, but increased distance alone does not guarantee a solution to the gas problem. -
The chemical filter quotation indicates the type of filter material, which helps to confirm the target gas, capacity and usage conditions, and avoids comparing inequivalent products based only on appearance and price. Quotes should also be understood in conjunction with media configuration and relevant performance data. -
When there is acid gas and solvent contamination in the clean room at the same time, the specific components, loads and sources should be identified respectively, and then layered, series or partitioned treatment should be evaluated. Multi-gas labels should not be taken as proof that all acid gases and organics meet the requirements. -
The amount of fan power consumption increased by the new resistance of the chemical filter needs to be calculated or measured based on the actual air volume, fan efficiency, control method and operating time. You cannot promise a uniform increase in power consumption based on just one pressure difference value. -
Checking the original motor load for chemical filter modification requires a combination of fan performance, control settings and actual operating measurements. The changes in air volume and power after adding resistance are affected by the fan type and control method, and cannot simply be assumed to be overloaded or power-saving. -
Chemical filtration modification measurements should cover the clear opening of the filter frame, installation depth, sealing contact surface, compression structure and removal path. It is also necessary to pay attention to the wind path, load-bearing and peripheral equipment, and should not just measure the length, width and height. -
Chemical filters can be evaluated and installed incrementally by area, provided that the pollution paths and ventilation connections in each area are clear. Phased implementation does not mean that the areas are completely independent. Shared return air or external input may still affect the overall effect. -
Chemical filtration retrofit downtime depends on the scope of work, installation location, cleaning recovery and acceptance steps, and there is no universal set number of hours. A plan including construction, cleaning, commissioning and verification should be given after the on-site verification is completed. -
To avoid affecting the room pressure difference, the chemical filter modification needs to check the balance of supply air, return air and exhaust air at the same time. New resistance may change the air supply volume, and you cannot just rely on restoring a certain fan speed to ensure a stable room pressure difference. -
Chemical filtration modifications can usually be evaluated to retain the original HEPA, but only if the original filter element and seal meet particle requirements, and the new filter section does not damage the air volume and structure. The division of labor between gas phase filtration and HEPA is different. Adding a chemical filter layer does not mean that the original HEPA can be canceled at will. -
Adding a chemical filter to an old air conditioning system does not necessarily require replacing the fan, but the operating point and target air volume under the new resistance must be checked. Being able to increase the speed or continue running does not mean that the motor load, noise and air supply are all suitable. -
What conditions should be evaluated first before adding a chemical filter to an existing clean room?Before adding a chemical filter to an existing clean room, the source and target of pollution should be clarified first, and then the filter position, fan margin, installation space and maintenance conditions should be checked. The modification plan cannot be determined solely based on the size of the existing filter frame. -
When there is dust on the surface of the chemical filter, you should first confirm the dust accumulation level, front-end protection and product maintenance instructions. Water washing, beating or high-pressure blowing cannot be used by default; removing dust does not mean restoring gas processing capabilities.


