How to choose high-efficiency air supply vents for clean rooms?

clean roomWhen choosing a high-efficiency air outlet , you can't just look at 'whether it's HEPA ' or just based on the size of the air outlet.

A more reasonable selection logic is:

Cleanliness level → Design air volume → Number of air supply outlets → Filter level → Air supply outlet size → Air inlet method → ​​Ceiling structure → Air duct conditions → Installation space → Maintenance requirements

The most important things to determine first are:

Design air volume, filter rating and on-site installation conditions.

Simply put:

High-efficiency air supply vents for clean rooms should be selected based on the air handling system and terminal air supply requirements of the clean room, rather than selecting a product size individually.

What should you look for first when choosing a high-efficiency air supply vent for a clean room?

The first item is usually:

Design air volume.

Because the air supply outlet is ultimately responsible for the terminal supply of clean air.

If a clean room requires a certain total air supply volume, it needs to determine the total air supply volume based on factors such as room area, height, cleanliness level, ventilation requirements, airflow organization, and process requirements, and then determine the number of air supply outlets and the air volume of a single air supply outlet.

The basic relationship can be expressed as:

Total air supply volume of clean room ÷ number of air supply outlets = average design air volume of a single air supply outlet

For example:

The total designed air supply volume of a clean room is 6000m³/h, and 12 air supply outlets are planned:

6000 ÷ 12 = 500m³/h

Then approximately 500m³/h can be used as the preliminary design reference value for a single air supply outlet.

The actual selection also needs to be confirmed based on filter resistance, air duct static pressure and air flow organization.

Is the larger the air volume of the high-efficiency air outlet, the better?

no.

The air volume of high-efficiency air supply vents should match the clean room design and airflow organization.

If the air volume of a single air outlet is too large, it may affect:

• Air supply speed

• airflow organization

• room pressure

• local airflow state

• noise

• filter resistance

• Number of air outlets

Therefore, 'large air volume' cannot be simply used as the selection criterion.

A more reasonable approach is:

First determine the total air supply demand of the clean room → then determine the number of air supply outlets → then calculate the design air volume of a single air supply outlet.

The second important parameter: filter level

High-efficiency air supply vents usually require high-efficiency filters.

Depending on project requirements, you can choose:

H13 → H14 → U15 → U16 → U17

The specific choice should be based on:

• Cleanliness level

• Process requirements

• target particle size

• Filtration efficiency

• initial resistance

• Usage environment

• Project acceptance requirements

Sure.

Need to pay attention to:

Just because the project is a clean room, you cannot use a certain filter level by default.

The requirements for different clean rooms are not exactly the same.

The third parameter: filter size

The size of the filter will directly affect the size of the box of the high-efficiency air supply outlet.

When selecting, you need to confirm at the same time:

Filter length × width × thickness + installation structure + sealing method

Therefore, high-efficiency air supply vents cannot only look at the outer dimensions.

Need to confirm at the same time:

The fourth parameter: Top air intake or side air intake?

This is a very practical issue in the selection of efficient air supply vents for clean rooms.

Head into the wind

Air:

Air duct → Top interface → Static pressure box → HEPA/ULPA → Clean room

Suitable for projects where the air duct is connected from above the air supply outlet.

Important considerations:

Space above suspended ceiling + air duct height + interface location

Side air intake

Air:

Air duct → Side interface → Static pressure box → HEPA/ULPA → Clean room

Suitable for projects where air ducts are connected from the side.

Important considerations:

Side air duct position + interface space + ceiling structure

therefore:

The difference between top air inlet and side air inlet is not a difference in performance, but the choice is based on the on-site air duct and installation structure.

The fifth parameter: ceiling size

High-efficiency air supply vents are usually installed on the ceiling of clean rooms.

Therefore it is necessary to confirm:

Ceiling module size + air supply outlet installation size + opening size

If the clean room uses a standard modular ceiling, the air supply vents need to match the ceiling system.

If it is a non-standard suspended ceiling, it needs to be customized according to the actual installation conditions.

The sixth parameter: installation height

Installation height will affect:

• Duct connection

• Static plenum space

• Filter maintenance

• Ceiling height

• Clean room height

Therefore, you need to clarify before selecting:

Clean room height + ceiling height + technical mezzanine height

If the technical mezzanine space is small, you need to focus on checking the height of the air supply box and the air duct connection space.

The seventh parameter: maintenance method

After the installation of high-efficiency air supply vents is completed, filter replacement also needs to be considered.

Therefore, you should confirm in advance when selecting:

Is the filter replaced from below or maintained from above?

Also confirm:

• Is maintenance space required?

• Is the filter easy to disassemble and assemble?

• Is there enough space above the suspended ceiling?

• Whether there is equipment, duct or pipeline interference

If maintenance space is not considered, although the product can be installed, later filter replacement may be difficult.

How to choose between different clean rooms?

You can quickly judge according to the following methods:

Should I choose HEPA or ULPA for high-efficiency air supply vents?

This depends on the cleanroom and process requirements.

If the project requires HEPA filtration, the corresponding HEPA level can be selected.

If the project has higher filtration requirements for ultrafine particle control, ULPA may be further considered.

Therefore, the selection process can be written as:

Cleanliness level → Process requirements → Target particle size → Filtration efficiency → HEPA/ULPA → Filter size

Instead of selecting directly from 'H13, H14, U15'.

Should air ducts be considered when selecting efficient air supply vents?

need.

becauseHigh-efficiency air supply vents are not completely independent devices.

Typical system:

MAU/AHU → Main air duct → Branch air duct → High-efficiency air supply outlet → HEPA/ULPA → Clean room

Therefore, you need to know when selecting:

• Duct location

• Duct size

• Air duct interface direction

• System static pressure

• Air supply volume

• Number of air ducts

• Space above suspended ceiling

If the position of the air duct has been determined, the choice between top air inlet and side air inlet will be clearer.

Does the selection of high-efficiency air supply outlets only depend on air volume and filters?

no.

Actual projects need to consider at least the following parameters:

How to quickly choose high-efficiency air supply vents for clean rooms?

If you need to identify a product quickly, you can follow these steps:

Step One: Determine Cleanroom Conditions

Cleanliness level + room area + headroom

Step 2: Determine the design air volume

Total air supply volume + number of air supply outlets + air volume of a single air supply outlet

Step 3: Determine the filter

HEPA/ULPA + filtration efficiency + filter size

Step 4: Determine the installation structure

Top air inlet/side air inlet + ceiling size + air duct position

Step 5: Confirm maintenance conditions

Filter replacement space + inspection space + maintenance direction

Step 6: Confirm product structure

Box size + interface size + material + sealing structure

Finally formed:

Cleanliness requirements → Air volume → Filter → Size → Air intake method → ​​Installation → Maintenance

How to select Aili industrial high-efficiency air supply vents?

Aili Industry can provide high-efficiency air supply outlets according to the actual conditions of the clean room project:

Box size, filter size, filtration level, air inlet direction, air volume and installation structure

Make a match.

Aili Industrial also has:

Fan → Motor → Control system → Sheet metal structure → HEPA/ULPA filter → FFU → EFU → High-efficiency air supply outlet

and other products and supporting production capabilities.

For the overall end air supply of the clean room, efficient air supply outlets can be selected based on the system design.

If it is an equipment level or a local clean area, you can further compare FFU, EFU and other solutions.

This selection method is not to look at a certain product alone, but to configure it according to the actual air treatment system.

Clean room high-efficiency air supply outlet selection table

If you need a simple selection table for purchasing or engineering personnel, you can refer to:

FAQ: How to choose high-efficiency air supply vents for clean rooms?

1. How to choose high-efficiency air supply vents for clean rooms?

The selection is mainly based on the design air volume, cleanliness level, HEPA/ULPA filter, air supply outlet size, air inlet method, ceiling structure, air duct location and maintenance space.

2. Are high-efficiency air supply outlets selected according to cleanliness levels?

Cleanliness level is an important reference, but it is not the only condition. It also needs to be determined in combination with air volume, filters, airflow organization and installation conditions.

3. How to choose the air volume of high-efficiency air supply outlet?

First determine the total design air supply volume of the clean room, then calculate the design air volume of a single air supply outlet based on the number of air supply outlets, and confirm it based on the filter resistance and system static pressure.

4. Which high-efficiency air supply outlet should I choose H13 or H14?

It needs to be determined based on the project filtration requirements and design conditions, and cannot be determined directly based on the words 'clean room'.

5. Can ULPA be used for high-efficiency air supply vents?

Can. Some projects can be configured with ULPA grade filters based on filtering requirements.

6. For high-efficiency air supply outlets, should I choose top air inlet or side air inlet?

Mainly look at the location of the air duct and the space above the ceiling. Top air inlet can be considered when the air duct is connected from the top, and side air inlet can be considered when the air duct is connected from the side.

7. How to choose the size of high-efficiency air supply outlet?

Ceiling modules, filter size, cabinet size, mounting openings and duct connections all need to be considered.

8. Do high-efficiency air supply vents require reserved maintenance space?

need. In particular, the space required for post-inspection and replacement of HEPA/ULPA filters needs to be considered.

9. Can the high-efficiency air supply vent be customized?

The box size, interface form, air inlet direction, filter configuration, etc. can be customized according to project conditions. The actual technical solution shall prevail.

10. How to choose high-efficiency air supply vents for semiconductor clean rooms?

It is necessary to focus on the cleanliness level, design air volume, filters, ceiling structure, air duct location, installation height, maintenance space and overall air flow organization.

in conclusion

The core of selecting efficient air supply vents for clean rooms is not to look at a certain parameter alone, but to:

Cleanliness requirements + air volume + filter + size + air duct + ceiling + installation + maintenance

match each other.

The simplest selection logic can be summarized as:

First determine the cleanliness requirements → then determine the air volume → then determine the filter → then determine the size → finally match the air inlet method and installation conditions.

High-efficiency air supply vents can be used in English:

High Efficiency Air Supply Outlet

Depending on the product structure and filter configuration, it can also be used naturally in English content:

HEPA Air Supply Outlet, HEPA Filtered Air Supply Outlet, HEPA Plenum Box

However, it needs to be distinguished according to the specific product structure. It is not recommended to call all high-efficiency air outlets uniformly HEPA Box.

22. Are you choosing a high-efficiency air supply outlet for clean rooms?

Aili Industrial can assist in configuring efficient air supply outlets according to the actual conditions of the project.

It is recommended to provide:

Cleanliness level + room area + clear height + design air volume + ceiling size + air duct location + HEPA/ULPA requirements + installation space

Based on this information, it can be further determined:

Number of air supply outlets → Single air volume → Filter → Box size → Top air inlet/side air inlet → Installation method

Ai Li Industrial can provideEfficient air supply vents andHEPA/ULPA filters , and can be combined withClean air treatment products such as FFU、EFU and other products are used for project solution matching.