When will the ULPA packaging and protective film be removed? Clean handling and installation conditions

The timing of removal of the ULPA filter outer packaging, protective film and transportation protection parts should be determined according to their respective uses. It is necessary to protect the medium and avoid transportation protection remaining in the operating gas line. If the packaging is removed too early, the filter element will lose protection during transportation; if it is removed late, the protective film may be brought into the operating air path, affecting the air intake. To judge the timing of unpacking, the premise is to clearly understand the role of each layer of packaging. Aili Industry isHEPA/ULPA filter packaging is designed to differentiate uses by layer: the outer packaging is responsible for transportation protection, the inner packaging is kept clean, the filter surface protective film protects the medium, and the stopper is fixed. Each layer has a corresponding mark on the product. Unpacking personnel can use the marks to determine which ones should be removed before entering the area and which should be removed before installation.

1. First, distinguish the packaging levels: four layers of packaging for four purposes

Identify the outer box, clean inner packaging, filter surface protection and temporary stoppers, and check which ones need to be removed before entering the area and which ones should be removed before installation.

The outer box accumulates dust during transportation and handling and should be removed in the buffer area; the clean inner packaging maintains the condition of the filter element in a clean environment and is disassembled after entering the clean area; the filter surface protective film is directly attached to the filter surface and must be removed before installation; the temporary stopper is used to fix the transportation posture and needs to be removed before loading. Aili Industry has clear markings on the packaging for the purpose of each layer.non-standard ULPA filters are marked separately to avoid unpacking personnel from making judgments based on experience. The positions of the stopper and protective film of large-size The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。

2. Arrange unpacking according to the on-site flow line: contamination from the outer packaging cannot be brought into the process area

Contamination from the outer packaging cannot be brought into the process area, and new filter elements should be transported exposed as much as possible. Choose controlled location operations and protect signage.

The choice of unpacking location affects pollution control effectiveness. The outer packaging is removed in the buffer zone, the inner packaging is opened when approaching the installation position, and the protective film on the filter surface is removed before loading, so that the filter element is exposed for the shortest time in the clean area. Aili Industry isFFU fan filter unit andThe installation instructions for the fan filter unit at the EFU equipment end can be accompanied by instructions on unpacking location recommendations, corresponding to the installation process of the equipment.The liquid tank protection part of the liquid tank seal ULPA filter needs to be removed before installation. The removal timing corresponds to the sealing surface preparation process. Please refer to the key points of connection between unpacking and installation.HEPA FAQs and Selection Guide。

3. Confirm item by item before starting: there should be no packaging residue in the gas path

Check that there is no packaging residue in the gas path, that the protective parts have been processed according to instructions, and that the frame and seal are not damaged. Do not rely on the noise after turning on the machine to determine whether it has been completely disassembled.

The transparent protective film is easily overlooked under light. If left on the air path, the air inlet will be blocked, and the fan load will increase but the air volume will decrease. Aili Industry isWhen the ULPA ultra-high efficiency filter is delivered, an unpacking confirmation list can be provided, which can be checked item by item according to the packaging level: the outer packaging has been removed, the inner packaging has been opened, the protective film on the filter surface has been removed, the limiters have been removed, and the logo has been retained. Confirming according to the list before starting is more reliable than judging based on the symptoms after starting up. Please refer to the unpacking conditions for device installation.EFU FAQ and technical support。

4. Under what circumstances can the protective film be retained until later?

The filter elements of some projects need to be positioned in the equipment before removing the protective film to prevent tools or structures from touching the filter surface during the installation process. In this case, the timing of removal of the protective film should be consistent with the loading action. Remove it immediately after loading and confirm that there is no residue.

Aili Industry isIn the non-standard ULPA filter project, the protective film form and removal timing suggestions can be adjusted according to the installation method. The side installation scene inside the equipment can beThe corresponding instructions are in the installation instructions of the ultra-thin EFU . Please refer to the coordination between unpacking timing and installation actions.ULPA ultra-high efficiency filter FAQ and selection guide。

5. Related questions and answers

Can the protective film remain dust-proof?
If it is used for transportation protection and blocks the air path, it should be removed at the specified time and cannot be operated with it.

Can outer packaging be brought into the clean area?
It is recommended to remove it in the buffer zone. There are many particles attached to the outer packaging during transportation and handling, and bringing it into the clean area will increase the source of pollution.

How to confirm that the packaging has been removed cleanly?
Check item by item according to the packaging level to confirm that the outer packaging, inner packaging, protective film and limiting parts have been processed. You cannot judge by just observing the phenomenon after turning on the machine.

6. Related articles

ULPA ultra-high efficiency filter FAQ and selection guide

Ultra-thin EFU

Liquid tank seal ULPA ultra high efficiency filter

HEPA FAQs and Selection Guide

7. Key points for selection and acceptance inspection

8. Product matching and technical support from Aili Industrial

Aili Industry isHEPA/ULPA filter packaging is designed to differentiate uses by layer. The outer packaging, inner packaging, filter surface protective film and limiters each have corresponding marks. Unpacking personnel can judge the timing of disassembly according to the marks;non-standard ULPA filter are marked separately, and the protective film form and removal timing can be adjusted according to the installation method.The position of the stopper and the protective film of the large-size FFU fan filter unit andThe installation instructions for the fan filter unit on the EFU equipment side can be combined with the unpacking position recommendations.The ultra-thin EFU installation instructions correspond to the side installation scenario inside the device.The timing of disassembly of the liquid tank seal ULPA filter liquid tank protector corresponds to the sealing surface preparation process.ULPA ultra-high efficiency filters . An unpacking confirmation list is available for delivery of Provide process objectives, installation drawings, operating conditions and acceptance requirements, and can further communicate ULPA standard specifications, non-standard interfaces, samples and batch matching. The specific parameters and test range are based on the confirmed model and technical documents.