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What projects are side air inlet high-efficiency air supply vents suitable for? Structural features, installation methods and selection methods

Number of views: 2681     Author: Editor of this site Release time: 2026-09-09 Source: This site

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1. What is a side-intake high-efficiency air supply outlet?

The side air inlet high-efficiency air supply port refers to in which the air inlet interface is set on the side of the box .a high-efficiency air supply port structure

The air enters the air supply port from the side duct, then passes through the internal static pressure box and HEPA/ULPA filter, and finally enters the clean room through the diffuser device.

Typical air paths are:

Air conditioning box/air treatment equipment → Air duct → Side air inlet interface → Static pressure box → HEPA/ULPA filter → Clean room

The biggest structural difference between it and the top-inlet high-efficiency air supply vent is that the air duct connection direction is different.

2. What projects are suitable for side-intake high-efficiency air supply vents?

Side-intake high-efficiency air supply vents are usually suitable for projects where the air duct needs to be connected from the side of the air supply vent, or where the top space is not convenient for direct connection of the air duct .

Common applications include:

Project type

Applicable situations

Main considerations

Application area

Electronic clean room

The air duct needs to be arranged sideways

Air duct direction and equipment layout

Electronic manufacturing

Semiconductor clean area

Determine based on on-site pipeline layout

Ceiling and pipeline space

Precision manufacturing

laboratory

Suitable for side air duct connection

head space

Clean laboratory

Medical clean room

Can be used according to the duct system

Air volume and maintenance

Clean production

Food clean area

Determine according to the terminal air supply system

Air ducts and suspended ceilings

Clean production

renovation project

Convenient for on-site pipeline adjustment

Original structural limitations

Clean room renovation

The judgment here focuses on on-site installation conditions , rather than simply selecting based on industry names.

3. What are the structural features of the side-intake high-efficiency air supply vent?

The side air inlet structure is mainly connected to the air duct through the interface on the side of the box.

Common components include:

components

Main function

cabinet

Form an end air supply structure

Side air inlet interface

Connect to side air duct

static pressure box

Transition of air entering the filter

Filter installation structure

Install HEPA/ULPA filter

HEPA/ULPA filter

Highly efficient air filtration

diffuser

tissue end airflow

Sealed structure

Install with filter

The basic air flow is:

Side air duct → Side air inlet interface → Static plenum → High efficiency filter → Diffusion panel → Clean room

4. Under what circumstances is it suitable to use side air intake?

The side air intake structure can be considered in the following situations.

1. The air ducts need to be connected horizontally

If the air duct passes by the side of the air supply outlet, you can use the side interface to connect it.

2. The space above the suspended ceiling is limited

Side-intake can be a structural option when headspace is limited by beams, piping, or other equipment.

3. The on-site air duct has been determined

For renovation projects, if the direction of the original air duct has been determined and the air duct cannot be easily accessed from the top, side air inlet can be selected based on site conditions.

4. Various pipelines are concentrated in the suspended ceiling area

When there are multiple systems such as fire protection, lighting, and process pipelines above the suspended ceiling, the air inlet direction can be selected based on the on-site space.

It should be noted that side air inlet does not mean that the air duct resistance and airflow organization can be ignored. System design and verification are still required in the end.

5. Are side-intake high-efficiency air supply vents suitable for clean room renovation projects?

It can be considered based on specific site conditions.

Compared with new construction projects, clean room renovation projects are usually affected by the following:

  • air duct

  • Liang

  • suspended ceiling

  • pipeline

  • equipment

  • Inspection space

and other conditions.

If the original air duct is more convenient to access from the side, the side air inlet high-efficiency air supply outlet can be used as an end structure option.

Typical transformation ideas are:

Original air duct → On-site interface confirmation → Side air inlet high-efficiency air supply outlet → HEPA/ULPA → Clean room

However, whether it can be directly replaced requires measuring the on-site dimensions and confirming the air volume, static pressure and filter specifications of the original system.

6. What is the difference between side air inlet and top air inlet high-efficiency air supply outlets?

Both structures can be used for air supply at the end of the clean room. The main difference is the location of the air inlet interface.

Compare items

Side air intake

Head into the wind

Air inlet position

Box side

Top of box

Duct direction

horizontal connection

Connect up and down

Common conditions

There is air duct space on the side

There is air duct space at the top

On-site adaptability

Suitable for lateral pipeline layout

Suitable for top pipeline layout

Main considerations

Side interface location

Top interface height

Selection basis

Duct direction and site structure

Air duct routing and ceiling structure

The selection method can be simply understood as:

Where does the air duct come from → The air supply outlet is selected according to the on-site conditions to correspond to the air inlet direction.

7. Will the side-intake high-efficiency air supply outlet affect the air supply effect?

The air supply effect cannot be judged based only on the three words 'side air intake'.

Actual terminal air conditions depend on several factors, including:

  • Design air volume

  • Duct resistance

  • Static pressure box structure

  • filter resistance

  • Filter installation

  • diffuser

  • Air outlet layout

  • Return air method

  • Overall airflow organization

Therefore, the side-intake high-efficiency air supply vents need to be selected and matched to the system according to the designed air volume.

Its basic design logic is:

Design air volume → Air duct system → Side air inlet interface → Static pressure box → Filter → Air supply surface → Clean room

8. How much installation space is required for the side-intake high-efficiency air supply vent?

There is no fixed size of installation space that applies to all products.

Need to be based on:

Cabinet size + side interface size + duct size + filter size + maintenance space

Make sure.

Especially in clean rooms with tight ceiling spaces, measurements should be made in advance:

  • Ceiling height

  • Duct height

  • Duct width

  • side distance

  • Beam and column position

  • Other pipelines

  • Filter maintenance space

This can reduce structural conflicts during later installation.

9. How to choose HEPA filter for side air inlet high-efficiency air supply outlet?

There is no direct correspondence between the side air inlet structure and the filter grade.

Filters should be selected based on clean room design requirements.

Common configurations include:

  • HEPA

  • ULPA

When choosing, you need to consider comprehensively:

Cleanliness level → Filtration efficiency → Design air volume → Filter size → Filter resistance → Filter maintenance

If the filter model has been determined, the air supply box, filter installation structure and sealing method need to match it.

10. How to determine the air volume of the side air inlet high-efficiency air supply outlet?

Side air inlet is the same as top air inlet. The design air volume of a single air outlet needs to be determined based on the overall design of the clean room.

For example:

The total designed air supply volume of the clean room is 6000m³/h.

If the design air volume of a single side-inlet high-efficiency air supply outlet is 500m³/h:

6000 ÷ 500 = 12

This is a theoretical quantity.

In practice, it is also necessary to combine:

  • Air outlet position

  • Ceiling size

  • Device location

  • Return air position

  • airflow organization

  • filter resistance

  • Duct system resistance

Make adjustments.

11. What parameters are required for selecting a high-efficiency side air inlet air supply outlet?

It is recommended to organize the following parameters when purchasing projects:

parameter

Need to confirm content

parameter

Need to confirm content

Cleanliness level

ISO grade etc.

room size

Length×width×height

Total air supply volume

m³/h

Air volume of a single air outlet

m³/h

filter

HEPA/ULPA

filter size

Length×width×thickness

Inlet direction

Side air intake

Duct location

Site size

Ceiling size

Module size

Cabinet size

Determine on site

Installation space

side space

maintenance space

Filter replacement conditions

12. Are side-inlet high-efficiency air supply vents suitable for low-ceiling projects?

It can be judged based on the actual structure.

If the top space is not enough to facilitate the arrangement of top air ducts and interfaces, and there is available air duct installation space on the side, a side air inlet structure can be considered.

But please note:

Low ceiling ≠ must use side air intake

Ultimately it is still necessary to measure the on-site space and compare the installation conditions of different air inlet structures.

13. Which clean air treatment systems are suitable for side-intake high-efficiency air supply vents?

Side air intakeHigh-efficiency air supply vents can be used in centralized duct air supply systems.

A typical system is:

Air treatment equipment → Main air duct → Branch air duct → Side air inlet high-efficiency air supply outlet → HEPA/ULPA → Clean room

If the project adopts a modular air treatment method, equipment such as FFU and EFU can be considered according to the specific area.

Therefore, when selecting equipment, you first need to clarify which air treatment method is used in the clean room.

14. How to support the project of Aili industrial side air inlet high-efficiency air supply vent?

Aili Industrial can match the structure and specifications of the side-intake high-efficiency air supply vents based on the site conditions of the clean room project.

Key points to confirm:

Air duct position → Side interface → Design air volume → HEPA/ULPA filter → Box size → Ceiling size → Maintenance space

If the project is a clean room renovation, the air inlet method can also be determined based on the original air ducts, ceilings and equipment locations on site.

Aili Industry itself has the manufacturing capabilities of sheet metal, filters, fans, motors and control systems, and also provides high-efficiency filters, FFU, EFU and other clean air treatment equipment.

For different clean areas, product combinations can be made based on the actual needs of centralized air supply, modular air supply and equipment-side air supply.

15. Frequently asked questions about side air inlet high-efficiency air supply vents

1. What projects are the side-intake high-efficiency air supply vents suitable for?

It is mainly suitable for clean room projects where the air duct needs to be connected from the side, the top space is limited, or the on-site air duct has been arranged laterally.

2. Is side air inlet suitable for clean room renovation?

Can. For renovation projects, the side air inlet structure can be selected based on the original air duct location and on-site space.

3. Which is better, side air inlet high-efficiency air supply vents or top air inlet?

The two are mainly different in the direction of air inlet, and there is no unified applicable conclusion. The selection should be based on the direction of the air duct, ceiling space, installation conditions and maintenance methods.

4. Can HEPA be installed on side-intake high-efficiency air supply vents?

HEPA filters can be configured according to the project design, and the specific needs are to match the filter specifications, air volume and box structure.

5. Can side-intake high-efficiency air supply vents be used in ISO 5 clean rooms?

Selection can be made based on the overall design of the ISO 5 clean room. Whether to use side air inlet needs to be determined based on the air duct layout, design air volume, air flow organization and filter configuration.

6. How to choose the air volume of the side air inlet high-efficiency air supply outlet?

It is necessary to first determine the total design air supply volume of the clean room, and then configure it according to the number of air outlets, the air volume of a single air outlet and the air flow organization.

in conclusion

Side air intakeThe main feature of the high-efficiency air supply vent is that the air inlet interface is located on the side of the box , which is suitable for projects where the air duct needs to be connected horizontally, the top space is limited, or the on-site pipeline layout requires access from the side.

When selecting, it is recommended to follow:

On-site air duct → Air inlet direction → Ceiling space → Design air volume → HEPA/ULPA → Air outlet size → Installation and maintenance

Make comprehensive judgments.

For new projects, the air inlet direction can be determined during the clean room design stage; for renovation projects, the original air duct and ceiling space should be measured first, and then the top air inlet or side air inlet structure should be selected.

Aili Industrial develops and manufactures FFU, EFU, HEPA/ULPA air filters, high-efficiency air supply vents, fan boxes and other clean air equipment. Relying on motors, fans, control systems, filters and complete machine supporting capabilities, we provide selection and customization support for clean room and production equipment projects.

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