Definition
A HEPA clean bench is an air purification device that provides a local high-cleanliness working environment. Air is drawn in by a fan, filtered through HEPA/ULPA filters, and delivered to the work area in a vertical or horizontal laminar flow pattern, ensuring that laboratory and production operations are free from particulate and microbial contamination.
Airflow can be categorized into two types:
Vertical flow
Air flows from top to bottom. The advantage is that there is little external airflow interference and it is more suitable for aseptic operation.
Horizontal flow
Air flows horizontally from back to front. This offers a better view of the work area, but is more susceptible to interference from operator movements.
Application
Biopharmaceuticals
Sterile packaging, cell culture, and microbiological testing.
Precision electronics
Assembly and testing of semiconductor components and integrated circuits.
Food testing
Sterile sampling and microbiological analysis.
Research institutions
Sterile procedures for cutting-edge research in life sciences, materials science, and other fields.
Product advantages
Ultra-High Cleanliness
Ensures the work area meets ISO Class 5 (Class 100) or higher cleanliness standards, providing the highest level of protection for sensitive experiments and precision production.
01
Excellent Energy Performance and Low Operating Costs
The HEPA clean bench utilizes high-efficiency fan energy-saving technology, resulting in smoother operation and lower noise levels, reducing overall energy consumption by 20%-30% compared to conventional products.
02
Excellent Structure and Ultra-Long Service Life
Constructed of high-quality galvanized steel and stainless steel, the entire unit boasts trouble-free operation time far exceeding industry standards.
03
User-Friendly Design and Low Maintenance Costs
The modular design allows for easy operation, effectively reducing maintenance costs and time throughout the entire lifecycle.
04
Meets Stringent Industry Compliance Standards
Product design and manufacturing adhere to authoritative international and domestic standards such as GMP and ISO 14644.
05
Maintenance and Care
Daily Cleaning
The work surface can be cleaned with 75% ethanol or a neutral detergent, and the exterior can be cleaned with a damp cloth. No special maintenance supplies are required, reducing daily operating costs.
Filter Replacement
It is recommended to regularly check the filters. Replace them when the differential pressure gauge indicates a value exceeding 1.5-2 times the initial differential pressure.
Maintenance Recommendations
Replace the primary filter every 3-6 months, and the HEPA filter every 1-2 years. A comprehensive inspection (such as air velocity calibration and leak testing) is required every 12 months.
FAQ
What cleanliness standards can the work area meet?
The work area can meet ISO Class 5 cleanliness standards.
What is the lifespan of a HEPA filter?
The actual lifespan depends on the dust concentration in the environment and the frequency of use. Replacement is required when the pressure differential reaches twice the standard.
What might cause unstable air speed?
The most common cause is a clogged pre-filter. Prioritize checking and cleaning. If the problem persists, there may be a problem with the fan or control system.
How long should clean bench usage records be retained?
Record retention periods vary depending on the compliance requirements of different industries, but the core principle is to cover the entire product lifecycle.
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