Number of views: 3051 Author: Aili Industry Release time: 2026-12-21 Source: Ai Li Industrial
Why does molecular pollution affect clean production?
Molecular contamination may affect products and equipment through surface adsorption, chemical effects or corrosion. The specific impact depends on the composition, exposure conditions and sensitive objects. The entire contamination risk in clean production cannot be judged solely by the number of particles. In an environment with qualified particle control, there may still be problems with molecular contamination.
1. The same gas has different effects
Different materials, processes and equipment may have different sensitivities and control objectives should be developed around actual requirements. Ordinary deodorizing effects cannot replace process protection indicators.
The same gas may have completely different effects in different processes. Photoresists are sensitive to alkaline gases, optical components may be sensitive to acidic gases, and electronic devices may be affected by corrosive gases. Control targets should be formulated based on sensitive objects, rather than based on 'whether there is an odor'. Aili Industry ischemical filters, confirm the media according to the target gas and sensitive objects.When selecting FFU chemical filter can be used with circulating air treatment. The relationship between levels and filtering requirements can be found inISO cleanliness level comparison。
2. Investigation, Release and Dissemination
Fresh air, materials, cleaning agents and internal equipment may all form sources. Treatment locations need to be determined in conjunction with airflow paths and avoid attributing all surface abnormalities directly to air.
The source of molecular pollution may be fresh air, decoration materials, cleaning agents, adhesives or equipment operation processes. The propagation path is affected by airflow organization, and the treatment location should be selected before the contamination enters the protected area. Aili Industry isbox chemical filters andV-type chemical filter package, the filter section is determined according to the source location and fresh air path.In the Flat chemical filters are suitable for local treatment at the equipment end. For the correspondence between source and processing location, please refer toHEPA FAQs and Selection Guide。
3. Examples of project judgment
When particle detection is normal but there is an abnormality on the surface of the equipment, a special investigation of the materials, working conditions and related gases can be combined to determine the filtration configuration.
Particle detection is normal but the equipment has corrosion or surface abnormalities, indicating that the problem may be gaseous contamination. Rather than continuing to increase particle filtration levels, a specific investigation should be conducted into the gases of concern.
4. Application Check Points
Check items |
Confirm key points |
|---|---|
Sensitive objects |
Identify product equipment |
target ingredient |
According to actual requirements |
Source path |
Investigate materials and air |
Validation scope |
Combining Phenomenon and Detection |
5. Verification and subsequent use
Before comparing products, you should first write down the air problems that need to be solved. Odor, designated gases, particles, humidity and ventilation require corresponding evidence respectively. After confirming the actual task, choose the treatment method to avoid inferring the effect of the entire room from one material name or single indicator.
Aili Industry isIn the chemical filter plan, the processing method is confirmed according to sensitive objects and target components. The specific effect is subject to relevant gas detection and equipment status observation.
6. Related questions and answers
Does passing the particle test mean there is no risk of contamination?
cannot. Molecular pollution is gaseous pollution, and particle detection cannot reflect the impact of gas on products and equipment.
Does molecular pollution have to smell?
uncertain. Some gases have no noticeable odor at low concentrations but may still affect sensitive processes.
Can molecular pollution only be solved by air filtration?
Not exactly. Source remediation, material replacement, ventilation adjustments, and air filtration can be used together, depending on the source and transmission path.
7. Related articles
Chemical filter product series
8. Key points for selection and acceptance inspection
Check items |
Check the key points |
|---|---|
Sensitive objects |
product, equipment or process |
target gas |
Composition and concentration requirements |
source location |
Fresh air, materials or equipment |
propagation path |
Airflow organization and processing location |
Verification method |
Corresponding gas detection and status observation |
9. Aili Industrial products and equipment supporting equipment
Aili Industry provides chemical filters and clean air supply equipment selection packages. It can compare FFU package, box type, flat type and V-shaped products according to gas composition, treatment air volume and installation conditions. The manufacturing and supporting system covers the independent research and development and production of motors and fans, control systems, sheet metal, air filters and complete machine assembly, making it easy to jointly confirm the filter section, power and structural conditions. The specific gas effect, environmental suitability and service life still need to be verified based on the corresponding configuration data and actual working conditions.
learnChemical filter product series , check the products and air supply matching according to the project conditions. Clarify the goal → Check the conditions → Verify the effect → Arrange maintenance.
