Description
AP95 Ultrapure Cleanroom Fogger – High Volume LN₂ Fogging for Cleanroom Smoke Studies & Airflow Validation
AP95 Ultrapure Fogger for ISO Cleanroom Validation, Airflow Visualization & Smoke Studies
The AP95 Ultrapure Cleanroom Fogger is a high-performance LN₂ fogging system engineered for medium-to-large cleanroom environments, delivering exceptional fog density, extended runtime, and long-range airflow visualization.
Using Applied Physics’ proven ultrapure fogging technology, the AP95 generates a dense, residue-free fog using Liquid Nitrogen (LN₂) and DI / WFI water, enabling precise visualization of airflow patterns, turbulence, dead zones, and contamination pathways in:
- Pharmaceutical cleanrooms (USP <797>, <800>)
- Semiconductor fabrication facilities
- Biotechnology and life sciences environments
- ISO 14644 classified cleanrooms
The AP95 produces ultrapure fog with no residue, no contamination, and no cleanup required, making it ideal for critical environments.
AP95 Performance Overview
- Fog Output Volume: ≈ 19–20 m³/min
- Fog Density: ≈ 1900–2000 ml/min
- Operating Time: ≈ 85–95 minutes
- Visual Fog Distance: ≈ 25–35 feet
- Fog Outputs: Dual 80mm outlets
- System Type: Dewar-Style LN₂ System
Dewar-Style LN₂ Fogger – Proven Reliability in Cleanroom Environments
The AP95 utilizes a dewar-style LN₂ system, a time-tested and widely accepted approach for cleanroom smoke studies and airflow visualization.
How Dewar Systems Work
Dewar-style foggers operate using natural LN₂ evaporation, where liquid nitrogen transitions to gas and creates internal pressure used to drive fog production.
This passive process creates a stable and predictable fog generation system without reliance on active pressurization components.
Benefits of Dewar-Style Systems in Cleanroom Applications
1. Proven, Industry-Trusted Technology
Dewar systems have been used for decades in:
- Pharmaceutical validation environments
- Semiconductor fabs
- Cleanroom certification processes
Their reliability and simplicity make them a trusted standard across regulated industries.
2. Stable and Predictable Performance
Because dewar systems rely on natural LN₂ behavior, they provide:
- Consistent fog generation under standard operating conditions
- Predictable performance across validation cycles
- Repeatable results for documentation and compliance
3. Simplicity and Reliability
Dewar systems have:
- Fewer active components
- No mechanical pressurization systems
- Lower system complexity
This results in:
- Reduced maintenance requirements
- Increased system reliability
- Fewer potential failure points during critical testing
4. Cleanroom Compatibility
Dewar-style systems are well suited for cleanroom environments because they:
- Operate without introducing additional mechanical complexity
- Maintain a clean, controlled fog generation process
- Integrate easily into existing validation protocols
5. Controlled Fog Output for Validation Work
The passive nature of dewar systems allows for:
- Smooth fog delivery
- Controlled airflow visualization
- Accurate identification of turbulence and dead zones
This is particularly important for:
- ISO 14644 airflow visualization
- USP <797> compliance testing
- GMP validation procedures
6. Efficient for Medium-to-Large Environments
When properly engineered—as in the AP95—dewar systems can:
- Deliver high fog density
- Maintain extended runtime
- Provide strong visual coverage across larger cleanroom spaces
Why Dewar Systems Still Matter
While newer technologies exist, dewar-style systems remain widely used because they offer:
- Reliability over complexity
- Consistency over variability
- Proven performance in regulated environments
For many validation teams, this translates to:
- Greater confidence during audits
- Easier repeatability of results
- Reduced operational risk
AP95 – Optimized Dewar Performance
The AP95 is engineered to maximize the strengths of dewar-style fogging, delivering:
- High fog density (~2000 ml/min)
- Strong airflow visualization (25–35 ft)
- Extended runtime (up to ~95 minutes)
- Dual 80mm outputs for flexible application
This makes it ideal for:
- Medium-to-large cleanroom smoke studies
- Controlled airflow validation
- Repeatable compliance testing
Applications of the AP95 Fogger
- Cleanroom smoke studies (ISO 14644-3 Annex B7)
- USP <797> airflow verification
- HEPA filter validation
- Laminar flow testing
- Turbulence and dead zone detection
- Airflow pattern mapping
- Semiconductor airflow validation
- Pharmaceutical cleanroom certification
Fog Density – The Critical Performance Metric
Fog density determines:
- Visibility distance
- Clarity of airflow patterns
- Accuracy of validation results
With ~1900–2000 ml/min, the AP95 provides:
- Long visible airflow paths
- Clear turbulence visualization
- Improved documentation quality
- More accurate airflow modeling
AP95 vs Other AP Series Foggers
| Model | Fog Volume | Fog Density | Runtime | Distance | Best Use |
|---|---|---|---|---|---|
| AP30 | ~6–7 m³/min | ~600–700 ml/min | ~60 min | ~15–20 ft | Small rooms |
| AP50 | ~10–12 m³/min | ~1000–1200 ml/min | ~75 min | ~18–25 ft | Medium rooms |
| AP95 | ~19–20 m³/min | ~1900–2000 ml/min | ~85–95 min | ~25–35 ft | Medium–Large rooms |
| AP100 | ~20+ m³/min | ~2000+ ml/min | ~90 min | ~30–40 ft | Large rooms |
| AP200 | ~40+ m³/min | ~4000+ ml/min | ~100+ min | ~30–50 ft | Massive facilities |
What Liquids Are Used
- Liquid Nitrogen (LN₂)
- De-ionized Water (DI)
- Sterile Water
- Water for Injection (WFI)
Produces:
- 2–3 micron ultrapure fog
- Zero residue
- Zero contamination
- No cleanup required
When Should You Choose the AP95?
Choose the AP95 when:
- You need high fog output without moving to AP100
- You are working in medium-to-large cleanrooms
- You require reliable, repeatable validation results
- You want a proven dewar-style system with strong performance
AP95 – Proven Technology, High Performance
The AP95 combines:
- Proven dewar-style reliability
- High fog density
- Extended runtime
- Strong airflow visualization
It is engineered for teams that need consistent, dependable performance in critical cleanroom validation environments.
AP95 · AP Series LN₂
95 L passive/dewar AP Series platform for ultrapure airflow visualization
AP95 is a current passive/dewar AP Series fogger. Select it from the real application, study duration and delivery restriction rather than nominal capacity alone.
Technology
LN₂-based Applied Physics fogger platform.
Capacity reference
Nominal 95 L Dewar-style tank reference for this catalog model.
Selection
Compare AP35, AP95 and AP175 within the passive/dewar family; compare the self-pressurized AP30, AP50, AP100 and AP200 when architecture or handling requirements favor that design.
Delivered fog matters more than free-air output.
Hose length, diameter, bends, Y/T adapters, a restrictive injection port and enclosure pressure can all reduce or redistribute the fog that actually reaches the test area. For isolators and RABS, evaluate the intended delivery path under representative pressure conditions.
Before ordering
- Room/enclosure dimensions
- RABS/isolator pressure condition
- Hose and penetration dimensions
- Number of injection points
Final specification source
Use the current Applied Physics quote and product sheet for the exact configuration being purchased.
Use the product’s existing Request a Quote or Add To Order control so the requested item remains attached to the existing RFQ workflow.
Technical FAQ
Questions engineers and validation teams ask
Product relationship
Applied Physics Manufactured Product
This product is part of an Applied Physics product line. Applied Physics is the product brand and manufacturer. Model-specific specifications and engineering documentation on this page remain authoritative.
Applied Physics portfolio: Cleanroom
Product family: Cleanroom Foggers › AP Series LN₂ Foggers › AP95 · 95 LCatalog relationship: Applied Physics Manufactured Product
Related Applied Physics resources
Continue through the Cleanroom portfolio
Use these technical and portfolio pages to compare applications and related equipment. To keep this exact product attached to an RFQ, use the product’s existing Request a Quote or Add To Order control.
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