Cleanroom Equipment
Clean Bench
Product Overview
A clean bench creates a Class 100 local clean zone above the worktop. A centrifugal fan with medium and HEPA filters forms a self-contained air cleaning system, so the cleanliness of the working area does not depend on the classification of the room around it.
Two airflow directions are available. Vertical flow moves downward and suits work where cross-contamination is the concern; horizontal flow moves from the back towards the operator and suits work that needs strong sample protection but involves no hazardous material. Single- or double-sided construction determines how many sides can be worked from.
Features & Specifications
►**Cleanliness class**: Class 100 @≥0.5μm (US Fed. Std. 209E)
►**Average velocity**: 0.3～0.6 m/s, eight-step keypad adjustment
►**Colony count**: ≤0.5 per plate·hour (φ90mm culture dish)
►**Noise**: ≤62dB｜**Illuminance**: ≥300LX｜**Vibration half-peak**: ≤3μm (X, Y, Z)
►**Filter size**: 820*600*100 mm
►**Power supply**: AC 220V/50Hz
►**Worktop**: mirror-finish stainless steel; casing in powder-coated cold-rolled steel
►**Equipment**: independently switched lighting and UV germicidal lamp, settings retained through power loss with automatic restart
Specifications
| Model | Working area mm | Overall size mm | Max power kW | Weight kg |
|---|---|---|---|---|
| Single-operator double-sided vertical | 870*700*520 | 990*700*1650 | 0.15 | 110 |
| Two-operator single-sided vertical | 1300*700*520 | 1460*700*1650 | 0.3 | 200 |
| Two-operator double-sided vertical | 1300*700*520 | 1460*700*1650 | 0.3 | 200 |
| Single-operator single-sided horizontal | 910*480*570 | 910*790*1380 | 0.15 | 110 |
| Two-operator single-sided horizontal | 1570*480*570 | 1570*790*1380 | 0.3 | 200 |
Detailed Description
Vertical or horizontal comes down to who is protected
This is the first thing to settle when selecting: is the sample being protected, or the operator? **Horizontal flow** supplies from the rear and discharges towards the operator. The sample always sits upstream of clean air, which gives the best sample protection — but the air ends up on the operator, so it must **never** be used for hazardous dusts, volatile chemicals or biological material. **Vertical flow** moves downward and leaves at the front edge of the worktop, so the operator is not facing the discharge. It controls cross-contamination better and suits benches shared by several people. Where the operator must be protected, neither is correct — that calls for a fume hood or a biological safety cabinet. A clean bench delivers clean air; it has no capability to draw hazardous material away.Velocity and filter life
Velocity is adjustable in eight steps across 0.3～0.6 m/s. A new unit usually reaches Class 100 at a low setting; as the filter loads and resistance rises, the setting is raised to hold velocity. That remaining headroom is itself the filter-life indicator: when the control is already at maximum and velocity still falls short of 0.3 m/s, the HEPA filter has reached final resistance and needs changing. This tracks the real condition far better than counting months in service.Selection References
Before ordering, verify the efficiency grade, media type, and whether the operating environment fits your requirements.
