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{"title":"Class 100 Cleanliness Level Highly Laminar Clean Bench for Particle Removal","imgUrl":"https:\/\/img.ismap.com\/nimg\/33\/1e\/f95f53582a06997d6660c2b31836-200x200-1\/class_100_cleanliness_level_highly_laminar_clean_bench_for_particle_removal.jpg","attrs":{"Brand Name":"ZJNF","Model Number":"ZJNF-1","Certification":"CE","Place of Origin":"China"}}
{"title":"Stainless Steel Laminar Air Flow Work Bench Cabinet, Purification Laminar Flow","imgUrl":"https:\/\/img.ismap.com\/nimg\/dc\/14\/27afcefe8c25f1a7f4421d02cad0-200x200-1\/stainless_steel_laminar_air_flow_work_bench_cabinet_2c_purification_laminar_flow_hood_bench.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Minimum Order Quantity":"1"}}
{"title":"0.3um Laminar Flow Clean Bench Air Filtration 99.99% With HEPA Filter","imgUrl":"https:\/\/img.ismap.com\/nimg\/a1\/c9\/1b2cee1e1688b5ce811c844a4b85-200x200-1\/0_3um_laminar_flow_clean_bench_air_filtration_99_99_25_with_hepa_filter.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Material":"Stainless Steel"}}
{"title":"SUS304 201 Laminar Clean Bench Desktop H14 U15 For Air Purification Flow Hood","imgUrl":"https:\/\/img.ismap.com\/nimg\/dc\/65\/e4bedfb7f2626d348db6ca379029-200x200-1\/sus304_201_laminar_clean_bench_desktop_h14_u15_for_air_purification_flow_hood.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Minimum Order Quantity":"1"}}
{"title":"Biology Laboratory Anti Static Laminar Flow Clean Air Bench Horizontal Stainless","imgUrl":"https:\/\/img.ismap.com\/nimg\/62\/56\/e2b07f7cd854d197ecc8edb0b57a-200x200-1\/biology_laboratory_anti_static_laminar_flow_clean_air_bench_horizontal_stainless_steel_h14_u15_air_cleaning_equipment.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Minimum Order Quantity":"1"}}
{"title":"Custom Laminar Clean Bench ISO Stainless Steel Workbench Air Purification","imgUrl":"https:\/\/img.ismap.com\/nimg\/4f\/24\/098875048b138daff1ac84cf2645-200x200-1\/custom_laminar_clean_bench_iso_stainless_steel_workbench_air_purification.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Minimum Order Quantity":"1"}}
{"title":"PSC Motors Vertical Laminar Flow Clean Bench , 220V Laminar Flow Clean Air Bench","imgUrl":"https:\/\/img.ismap.com\/nimg\/e2\/c5\/22edeb62da374e8aac134e846aad-200x200-1\/psc_motors_vertical_laminar_flow_clean_bench_2c_220v_laminar_flow_clean_air_bench.jpg","attrs":{"Brand Name":"ZJNF","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Minimum Order Quantity":"1"}}
A clean bench is an air purification device that provides a locally high-cleanliness environment. It generates a unidirectional stream of purified air through a filtration system, widely used for aseptic operations. Key aspects include its core functions, working principles, and operational protocols:
I. Working Principle
Air Purification Process Room air is initially filtered by a pre-filter, then pressurized by a fan into a plenum chamber. It undergoes secondary filtration through a High-Efficiency Particulate Air (HEPA) or Ultra-Low Penetration Air (ULPA) filter, forming a vertical or horizontal laminar airflow (typical velocity: 0.3–0.6 m/s). This effectively removes contaminants from the work zone, achieving Class 100 cleanliness (per U.S. Federal Standard 209E)
Airflow Direction Classification
Vertical Laminar Flow: Airflows downward, suitable for biomedical applications to minimize operator exposure
Horizontal Laminar Flow: Airflows horizontally outward, commonly used in electronics industries where health risks are lower
II. Core Structure & Types
Classification Basis
Type
Features & Applications
Airflow Direction
Vertical Laminar Flow
Higher noise (top-mounted fan), ideal for pharmaceuticals
Wipe surfaces with ethanol and sterilize via UV irradiation for 30 min
Turn on fan and lighting; keep glass sash closed
Safety Notes:
Does not protect operators: Operates under positive pressure, safeguarding samples but not isolating users from hazards (e.g., chemical vapors, pathogens)
Distinguish from Biosafety Cabinets: Biosafety cabinets use negative pressure to protect personnel and environment
Maintenance Requirements:
Replace pre-filters and HEPA/ULPA filters regularly; install in double-door rooms in tropical climates for extended lifespan
Avoid blocking air inlets to ensure stable airflow
V. Technical Parameters Example (VD-650 Model)
Parameter
Value
Cleanliness Class
ISO Class 5 (Class 100) @ ≥0.5μm
Microbial Control
≤0.5 CFU/plate·hour
Noise Level
≤58 dB(A)
Power Supply
AC220V/50Hz, ≤0.3 kW
Product Details
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
3000000-4000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.
Which is the only high-tech technology company in Southern China with CNAS certification
We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, ... Shenzhen ZhongJian South Environment Co., Ltd was founded in 2003.
Which is the only high-tech technology company in Southern China with CNAS certification
We are mainly engaged in Designing Manufacturing, Testing & Verification, Manufacturing Processes and Quality Control, ...
9th Floor, Block C, Coolpad Building, Intersection Of Keyuan Avenue And Baoshen Road, Nanshan Gaoxin North District, Songpingshan Community, Xili Street, Shenzhen city, Guangdong, China
