Overhead Static Protection for Critical Environments
The Cleanroom Guardian is a high-performance overhead ionizing blower specifically designed to provide a “curtain” of ionized air over large work surfaces. By neutralizing static charges from above, it protects sensitive components throughout the assembly or packaging process without taking up valuable bench space.
Key Functional Features
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ISO Class 4 Certified: Engineered for the strictest environments, the fan assemblies are particle-tested to meet ISO 14664 Class 4 (Fed Std. 209E Class 10) standards, ensuring your cleanroom integrity is never compromised.
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Superior Coverage Area: Available in 2-fan or 3-fan configurations, the Guardian provides consistent ionization across a wide footprint, making it ideal for large-scale workstations or automated machinery.
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Integrated Lighting: To enhance worker visibility and ergonomics, the unit features an integrated fluorescent light that illuminates the workspace directly beneath the blower.
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Steady-State DC Ionization: Utilizing Simco-Ion’s patented technology, the Guardian maintains a stable ion balance and rapid discharge times even at varying fan speeds.
Why Choose the Guardian?
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Zero Bench Footprint: Suspended overhead, it clears your workspace of clutter while providing 100% coverage of the active assembly zone.
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Adjustable Airflow: Users can fine-tune the fan speed to balance comfort and static decay performance, ensuring a steady, non-turbulent flow of ionized air.
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Easy Maintenance: Features a built-in emitter point cleaner and a lockable high-voltage power supply for maximum safety and minimal downtime.
Typical Applications
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Gowning Rooms: Neutralizing static on cleanroom garments during the donning process to prevent particle attraction.
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Semiconductor Fabrication: Protecting wafers and sensitive electronics during stage-to-stage transfers.
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Medical Device Packaging: Preventing static-related contamination on sterile surfaces and pouches.
Technical Specifications
The Cleanroom Guardian is designed to meet the rigorous demands of ISO Class 4 environments. Use the data below to ensure compatibility with your facility’s power and space requirements.
| Dimension | Specification |
| Input Voltage | 2-fan: 120 VAC, 50/60 Hz: 0.2A; 230 VAC, 50/60 Hz, 0.1A
3-fan: 120 VAC, 50/60 Hz: 0.5A; 230 VAC, 50/60 Hz, 0.25A |
| Balance | 0±10V @ 18″ (46cm) from blower face |
| Discharge Time | 3 seconds @ 18″ (46cm) center blower position; fan high (1000-100v) |
| Coverage | 2-fan: '2 x 3' (61 x 91 cm) area; 3-fan: 2' x 4' (61 x 121 cm) area |
| Cleanroom Class | Meets ISO 14644 Class 4 (Fed std. 209E Class 10) |
| Emitter Points | Stainless Steel |
| Controls | 3-position key switch OFF, ADJUSTABLE HIGH; recessed fan speed control |
| Indicator Lights | Ionization Status: green NORMAL, red MAINTENANCE LEDs |
| Air Volume | 2-fan: 90 cfm fan low,
180 cfm high fan;
3-fan: 135 cfm fan low,
270 cfm high fan |
| Air Velocity | 200 fpm (1.0 m/s) fan low;
400 fpm (2.0 m/s)
fan high measured @ 18" (46 cm) |
| Audible Noise | 48 dBA fan low; 58 dBA fan high measured @ 2' (61 cm) |
| Operating Environment | Temperature 32-122F (0-50C);
humidity 30-70% relative humidity, non-condensing |
| Ozone | 0.02ppm, measured @ 18″ (46cm) above test plate |
| Power Outlets | Input IEC 320; output IEC 320,
allows power connection (daisy-chain)
of up to 10 units in series
from one power source |
| Mounting | Adjustable brackets and S-hooks provided |
| Enclosure | Aluminum with glossy white polyurethane finish |
| Dimensions | 2-fan: 31.75" W x 4" H x 6.75" D ( 81 x 10 x 17 cm)
3-fan: 42.75" W x 4" H x 6.75" D (109 x 10 x 17 cm) |
| Weight | 2-fan: 12 lb (5.5 kg); 3-fan: 15 lb (6.8 kg) |
| Warranty | Two year limited warranty |
Electrical & Physical
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Input Voltage:
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Emitter Points: Durable Stainless Steel
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Dimensions: * 2-Fan: 31.75″ W x 4″ H x 6.75″ D
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Weight: 12 lbs (2-fan) / 15 lbs (3-fan)
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Construction: Aluminum with glossy white polyurethane finish
Environment & Safety
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Cleanroom Class: ISO 14644 Class 4 (Fed. Std. 209E Class 10)
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Audible Noise: 48 dBA (low) to 58 dBA (high) measured @ 2 feet
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Ozone: 0.02 ppm measured @ 18″ above test plate
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Operating Temp: 32-122F (0-50C);
Control & Daisy-Chaining
The Guardian is designed for ease of use and scalability in large cleanrooms:
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Controls: 3-position key switch (OFF/ADJUSTABLE/HIGH) and recessed fan speed control.
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Status Indicators: Integrated Green (Normal) and Red (Maintenance) LEDs.
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Power Daisy-Chain: IEC 320 input/output allows you to link up to 10 units in series from a single power source.
Engineering Resource:
For a detailed look at decay rate charts and mounting diagrams, please view the full technical document:
📄 Download Cleanroom-Rated Guardian 2000 PDF
Cleanroom Guardian vs. Aerostat FPD
The Cleanroom Guardian and the Aerostat FPD are high-performance overhead units, they are designed for different environments and performance priorities.
At a Glance: Key Differences
| Feature |
Aerostat FPD |
Guardian CR2000 |
| Primary Environment |
Flat panel & general electronics assembly
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Cleanroom applications (ISO Class 4 rated)
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| Chassis Options |
2, 3, or 4-fan lengths
|
2 or 3-fan lengths
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| Discharge Speed |
Extremely Fast (1.0s @ 1′)
|
Standard (3.0s @ 18″)
|
| Daisy-Chaining |
No |
Yes (Up to 10 units)
|
| Control Type |
Recessed fan speed
|
3-position Lockout key switch
|
Detailed Comparison
1. Environmental Suitability
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Guardian CR2000: This is the clear choice for controlled environments. It is particle-tested to ISO 14644 Class 4 (Fed Std. 209E Class 10). It features silicone-free component surfaces to prevent contamination in sensitive cleanroom processes.
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Aerostat FPD: Designed for high-volume electronics manufacturing and flat panel assembly. It focuses on wide-area coverage and rapid neutralization rather than strict cleanroom particle limits.
2. Discharge Performance & Coverage
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Aerostat FPD: Prioritizes speed and high-velocity airflow. It achieves a discharge time of 1.0 second at 1 foot. It also offers a 4-fan version for larger coverage needs, reaching up to a 4’W x 5’L area for benchtop applications.
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Guardian CR2000: Offers a more balanced, steady delivery with a discharge time of 3.0 seconds at 18 inches. Its maximum size is the 3-fan version, covering up to a 2′ x 4′ area.
3. Monitoring & Security
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Guardian CR2000: Features advanced internal monitoring with dedicated Green (Normal) and Red (Maintenance) LEDs to verify ion balance and output. It also includes a lockout key switch to prevent unauthorized personnel from changing performance settings.
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Aerostat FPD: Uses a simpler Ionization ON light to indicate power and ion production. It uses recessed controls to reduce accidental adjustments.
4. Maintenance & Ease of Use
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Both Units: Include a patented built-in emitter point cleaner, making routine maintenance fast and simple.
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Aerostat FPD: Offers an optional fan air filter to protect internal components from environmental contamination in grittier factory settings.
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Guardian CR2000: Offers superior utility for large installations via daisy-chaining, allowing up to 10 units to be powered from a single source.
Summary Recommendation
Choose the Guardian CR2000 if…
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You are operating in a Cleanroom (ISO Class 4) environment.
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You need to daisy-chain multiple units for a long production line.
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You require tamper-proof controls (key switch) and detailed status monitoring.
Choose the Aerostat FPD if…
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Your primary goal is the fastest possible discharge time.
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You have a large work area that requires a 4-fan chassis.
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You are in a standard electronics assembly environment where air filtration might be necessary.
Choosing the Right Configuration
Selecting the number of fans depends primarily on the width of your workstation and the required “decay speed” (how fast static is neutralized) at the edges of your work area.
Configuration Guide
| Model |
Bench Width Recommendation |
Effective Coverage Area |
Ideal For |
| Two-Fan Model |
3 to 4 Feet |
2′ x 4′ area |
Standard assembly stations and gowning mirrors. |
| Three-Fan Model |
5 to 7 Feet |
3′ x 6′ area |
Large-scale workstations, multi-operator benches, or automated conveyors. |
Key Considerations for Your Setup
1. Airflow & Ion Placement
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The Two-Fan Model provides concentrated airflow directly over the center of a standard workbench.
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The Three-Fan Model eliminates “dead zones” on longer benches, ensuring that components placed at the far left or right of the table are still protected by the ionized “curtain.”
2. Discharge Times (Static Decay)
The more fans you have, the more volume of ionized air is delivered to the surface. If your process involves high-speed movement or highly sensitive components (HBM Class 0), the Three-Fan model is recommended even for 4-foot benches to achieve the fastest possible discharge times.
3. Integrated Lighting
Both models include integrated fluorescent lighting.
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The Two-Fan unit provides focused task lighting for a single operator.
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The Three-Fan unit offers broader, edge-to-edge illumination, reducing shadows across a wider work surface.
Pro-Tip: Measure your bench before ordering. If your workspace falls right at 4 feet but you handle extremely sensitive electronics, the extra coverage of the Three-Fan model provides an added safety margin against static re-accumulation.
Shipping & Lead Time
We ensure that your high-performance ionization equipment is packaged securely to maintain cleanroom integrity during transit.
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Standard Lead Time: This product typically ships within 14 days of order confirmation.
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Order Tracking: Once your unit has passed final quality inspection and is dispatched, you will receive an automated email with your tracking number.
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Shipping Method: Due to the size and sensitivity of the internal components, the Cleanroom Guardian is shipped via FedEx.
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Secure Packaging: Every unit is double-bagged and boxed with reinforced padding to prevent damage to the emitter points and integrated lighting.
Need it sooner? If you have an urgent cleanroom audit or project deadline, please Contact Us to see if we have specific fan configurations currently in shelf-stock for immediate dispatch.
Don’t See the Exact Specs You Need?
At Bennett and Bennett, we understand that static control requirements are rarely “one size fits all.” If our standard stock of Ionization Equipment doesn’t perfectly align with your technical data sheet, we can engineer a custom solution for you.
How Can We Help?
Our technical team is ready to assist you in navigating ESD specifications to ensure your components are fully protected.
Contact us today for a technical consultation or a custom quote.
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