Compare cleanroom foggers by measurable operating requirements.
Marketing labels are weak selection criteria. Compare output, density, visibility, runtime, outlet configuration and delivery accessories against the actual study.
Current Applied Physics ultrasonic platforms
| Platform | Published output | Typical visibility | Published runtime | Best-fit use |
|---|---|---|---|---|
| CRF2 | ≈ 0.26 m³/min | ≈ 6–7 ft | ≈ 50 min | Localized studies, small hoods, glove boxes and compact airflow areas |
| CRF3 | ≈ 0.89 m³/min | ≈ 10 ft | ≈ 70 min | Biosafety cabinets, barrier isolators and small cleanrooms |
| CRF6 | ≈ 2.4 m³/min | ≈ 12–15 ft | ≈ 45 min | RABS, isolators and medium cleanroom studies; dual 80 mm outlets |
Published specifications can change as products are updated. Confirm the current configuration and specification sheet before purchasing or writing a validation protocol.
When LN₂ becomes the stronger fit
High-volume LN₂ foggers are considered when the study requires substantially greater fog volume, wider coverage, longer visual distance or large-scale 3D airflow visualization. Consumable handling, fill procedures, safety requirements and deployment logistics must be included in the operating plan.
Do not compare only cubic meters per minute
Fog volume matters, but it is not the entire result. Review fog density, outlet count, hose diameter, exit velocity, visual persistence, water or cryogen requirements, warm-up and fill steps, remote operation, drain-and-dry procedures, portability and accessory configuration.
Control
Can the operator adjust fog volume and delivery without disturbing the test area?
Delivery
Can the hose and wand arrangement place fog exactly where the protocol requires?
Documentation
Can the fog remain visible enough for clear, repeatable video evidence?
Build a defensible quote request
Provide the room or equipment dimensions, airflow type, expected release location, number of simultaneous outlets, target visual distance, operating duration, electrical service, approved water type and whether LN₂ is available onsite.
Practical answers
Is the highest-output model always better?
No. Excessive fog or exit velocity can obscure the area or disturb the airflow being visualized. Match output to the study volume and delivery geometry.
Why do outlet count and hose diameter matter?
They affect how fog is distributed, whether multiple locations can be visualized, and how the operator positions the source without entering critical areas.
Need help matching equipment to the study?
Applied Physics can review the airflow area, test objective, desired visibility, operating duration and deployment constraints.
Talk with Applied Physics