Applied Physics, Inc. 720-635-3931
PO Box 186 Monte Vista CO 81144
400 N Country Road 2E Monte Vista CO 81144
Smoke Studies using Ultrapure LN2 Fogger as a smoke generator to visualize airflow patterns and turbulence

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Applied Physics, Inc.

Clean Room Fogger, CRF4

Ultrapure LN2 Fogger, AP35

Calibration Wafer Standard

PSL Wafer Standard

Contamination Wafer Standard

Particle Wafer Standard

Cleanroom Fogger, CRF2

LN2 Nitrogen Fogger

PSL Spheres, Polystyrene Latex Beads

Silica Nanoparticles in DIH2O, 15ml or 100ml volume

Smoke Study to Visualize Airflow and Turbulence

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1-720-635-3931 or 303-999-6837

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AP35 Ultrapure LN2 Fogger

The ultrapure fogger has been in use prior to 2001, using liquid nitrogen and Deionized Water or Water for Injection to create a very dense, ultra pure fog to provide superb visualization of airflow patterns, flow direction, turbulence and dead zones for up to 70 minutes in clean rooms, ISO suites, sterile rooms, barrier isolators and medical rooms. The AP35 provides 5 cubic meters ultrapure fog per minute with about 533 ml fog density each minute minute, superb for visualizing airflow and turbulence. More than 20-30 feet of air flow visualization is provided in the clean room. 3D airflow modeling is accomplished very well and no contamination is created and no clean up of any kind is required after visualizing the airflow. The AP35 ultrapure LN2 fogger supports airflow visualization guidelines as defined by USP797 Insitu Airflow Analysis, ISO 14644-3, B7; Federal Standards 209E and its replacement ISO Standard 14644-1 and 14644-2.
A Ultrapure Nitrogen Fogger uses LN2 and De-ionized Water or WFI water to generate a very dense, ultrapure fog for the best visualization of airflow patterns, direction, turbulence, dead zones and airflow velocity in clean rooms, ISO suites, sterile rooms, barrier isolators and medical rooms. Adjustable fog output is provided from 2 to 5 CUBIC METERS of ultrapure fog per minute with a typical 20-30 feet of visualization of turbulence in the airflow and around equipment. 3D airflow modeling is superb with the AP35 Ultrapure fogger. No contamination is created and no clean up of any kind is required after fog process is complete.

AP35, Ultrapure Nitrogen Fogger: 5 Cubic Meters of fog / Minute for about 70 minutes operation, 571 ml Fog Density/Minute - Request a Quote

The AP35 Ultrapure Nitrogen Fogger is superb in supporting video and visual fog requirements with a highly dense ultrapure fog output. This exceeds the closest competitor by 200% in fog density with 200% more visual fog distance and about 200% more fog operating time. The AP35 is a superb fogger for airflow visualization needs in pharmaceutical ISO suites and semiconductor clean rooms.

Ultrapure foggers are compared in fogger performance by determining Fog Density over time.

High fog density is what is needed to visualize airflow and turbulence for long distances. Fog density affects how visual the airflow is and controls the distance the airflow is visible to your eye or to a video camera. To determine fog density, the liquid volumes of the fogger is needed, combined with the operating time of the fogger. Which ultrapure Nitrogen fogger is best for the cost? The AP35 uses 35 L of LN2 and 5L of water. 40 total liters liquid generating dense fog for about 70 minutes. Since all liquids are consumed, the Fog Density calculation is: 40 liters / 70 minutes operation or about 571 ml per minute fog density. Competitive foggers convert less than 10L of LN2 and under 3 L of DI Water, which calculates the fog density at about 250 ml fog density per minute during a 25 to 35 minute operation. The AP35 Ultrapure Fogger produces twice the fog density, twice the visual airflow distance and 3.5 times the fog volume as compared to other ultrapure foggers, and the cost of the AP35 is nearly the same as other competitive LN2 foggers.

Nitrogen Fog Generator, UltraPure, Clean Room Fogger, 5 cubic meters per minute - Request a Quote

UltraPure fogger - The AP35 LN2 fogger is used in clean rooms, sterile rooms and ISO suites providing visualization of airflow, flow patterns, dead spaces and turbulence. Nitrogen fog generators provide a high purity fog to support Pharmaceutical guidelines, USP 797 In-Situ Airflow Analysis, ISO 14644-3 Annex B7 guidelines and Federal Standards 209E in semiconductor clean rooms. It uses a modular design for simple operation and maintenance.

A Nitrogen Fogger uses two sources to produce an ultra pure fog. The process combining the liquid nitrogen and DI water includes boiling the liquid nitrogen and DI water. As the LN2 and DI water boils, the vapor droplets are combined to form the highest purity of fog and highest fog density, which is not matched by any other type of fogger. UltraPure fog provides the greatest visible distance of the airflow turbulence, patterns. The ultrapure fog can easily describe how airflow is balanced in a sterile room or ISO suite. The nitrogen fog generator is sometimes referred to as a smoke machine by facility staff. In fact it does not produce smoke at all, which would be a particulate type of fog. The manner in which the nitrogen fogger produces fog causes DI Water and liquid nitrogen to boil in separate LN2 dewar. The DI water comes to high temperature forming a water vapor composed of vapor droplets less than 2 microns in diameter. Although DI water is quite clean, there is some remaining residue in the DI water. During the DI Water heating process, any remaining residue in the DI water gets attracted to the walls of the DI Water chamber, which is grounded. This helps to provide an ultra pure fog using a typical 16 Meg Ohm Distilled water or WFI water for injection. The water vapor droplets then pass over the Liquid Nitrogen Dewar, where the LN2 boils at room temperature. The resulting combination of water droplet and nitrogen droplet forms an ultrapure fog droplet at a nominal 2-3 micron diameter; which creates a very dense, low pressure, ultra pure fog. The high density of ultra pure fog droplets provides the best visualization of the airflow and turbulence, increases the distance at which one can see the airflow and it is the most pure form of fog that can be used in a cleanroom.

An ultrapure, nitrogen fog generator creates a particle free, non-contaminating, high purity fog, leaving no residue behind as the ultra pure fog evaporates back to the air components that we breathe, nitrogen, oxygen and hydrogen. The fog enters the airflow at very low pressure, thus it does not create a turbulence, making the UltraPure nitrogen fogger the best cleanroom fogger suitable for use in Class 1 - 100,000 clean rooms for airflow, turbulence visualization, flow balancing and contaminant transport studies around process tools. This ultra pure fog is typically used to support USP 797 In-Situ Airflow Analysis in Pharmaceutical sterile rooms, barrier isolators and ISO 1-9 suites.

Watch video of the LN2 UltraPure Fogger
AP35 nitrogen fog generator
Ultrapure Fog Generator, 5 cubic meters fog volume / minute for about 70 minutes with about 571 ml per minute fog density and from 20 - 30 feet visible airflow

Performance of the AP35 Ultrapure LN2 Fogger- Request a Quote

Product Model AP100 LN2 Fogger AP35 LN2 Fogger CRF4 Ultrasonic Fogger Other LN2 Foggers
FOG Minutes ~ 90 minutes ~ 70 minutes ~ 45 minutes ~ 20-40 minutes
FOG Volume Meters/Min. ~ 15.5 cu. M/min, 2 or 4 fog hose outputs ~ 5.0 cu. M/min, 1 or 2 fog hose output ~ 1.25 cubic meters / minute ~ 0.8 to 1.5 cubic meters / minute
Total FOG Volume ~ 1162 cubic meters ~ 350 cubic meters ~ 56.25 cubic meters ~ 16 to 60 cubic meters
Fog Density (ml/minute) ~ 1520 mL / minute ~ 571 mL / minute ~ 187 mL / minute ~ 150ml to 260 mL / minute
Visual Fog Distance ~ 30 to 40 feet ~ 20 to 30 feet ~ 10 to 15 feet ~ 10 to 15 feet
Adjustable Fog Volume Yes, thru mechanical valve control Yes, thru mechanical valve control Yes, thru touchpad and wireless No fog volume control
Adjustable Airflow Velocity Yes, thru touchpad and wireless Yes, thru touchpad and wireless Yes, thru touchpad and wireless No airflow control
Fogger Technology Ultrapure Ultrapure Ultrasonic Ultrapure
Liquids Used LN2 + DI Water or WFI LN2 + DI Water or WFI DI Water or WFI LN2 + DI Water or WFI
Clean Room Class Class 1 - 10,000 and stage Fog Class 1 - 10,000 Class 1 - 10,000 Class 1 - 10,000
Compatible Guidelines USP 797 USP 797 USP 797 USP 797
Compatible Guidelines ISO 14644-3, Annex B7 ISO 14644-3, Annex B7 ISO 14644-3, Annex B7 ISO 14644-3, Annex B7
Compatible Guidelines Federal Standards 209E Federal Standards 209E Federal Standards 209E Federal Standards 209E
Compatible Guidelines ISO Standard 14644-1, 14644-2 ISO Standard 14644-1, 14644-2 ISO Standard 14644-1, 14644-2 ISO Standard 14644-1, 14644-2
DI / WFI Water Volume 10.0 liters, 2 water heaters 5.0 liters, 1 water heater 10 liters 1-3 liters
LN2 Volume 100 liters 35 liters No LN2 used 6-10 liters
Operator Control Touchpad control of airflow Touchpad control of airflow Touchpad control of fog volume & airflow Power Switch, no fog controls
Remote Control Wireless Remote control of airflow Wireless Remote control of airflow Wireless Remote control of fog volume & airflow No Wireless Remote Control of fog
Handling Rolling Enclosure Rolling Enclosure Carry Handles (top and front) Carry Handle
Enclosure 316L Stainless Steel, electro-polish 316L Stainless Steel, electro-polish 316L Stainless Steel, electro-polish Stainless Steel
Power VAC 220 VAC 120, 220, 100 VAC 120, 220, 100 VAC 120, 220, 100 VAC
Full Weight ~ 398 lbs ~ 250 lbs ~ 65 lbs ~ 50-75 lbs
Accessories 1-8 Accs 1-9 Accs 1-7 Accs Several Accs


INFORMATION

The AP35 Ultrapure Fogger is used in smoke studies requiring higher volumes of ultrapure fog. No fog contamination and no clean room clean up is required after use. Operating instructions are emailed as a PDF manual.

Theory of Operation: Ultrapure fog generation using liquid nitrogen and DI water or WFI Water. Use of any other liquids or chemicals will void the warranty.

Direct operation or wireless remote control operation is provided.


Notes:

  1. The AP35 produces higher volumes of ultrapure fog with a fog vapor diameter of 2-3 microns. AVOID USING IN IMMEDIATE VICINITY OF ELECTRICAL APPLIANCES, WATER SENSITIVE PRODUCTS AND EQUIPMENT.
  2. The LN2 fogger is intended for use on a flat surface. DO NOT OVERFILL OR TIP THE FOGGER DURING OPERATION.

Cleanroom Ultrapure Fogger Features - Request a Quote

AP35 Fog Curtain
Ultrapure Nitrogen Fog Generator with Fog Curtain
  • Adjustable volume of ultrapure fog to visualize airflow and describe direction, velocity and patterns in airflow
  • Modular design provides a simple design and easy operation
  • Standard Direct Control, or remote control by wireless key fob to operate behind a closed wall or closed area
  • Visualize unwanted gas emission locations and dead zones
  • Testing with ISO 14644-3 ANNEX B7 airflow visualization
  • Testing with Federal Standards 209E in semiconductor cleanrooms
  • Testing with Pharmaceutical USP 797 Guidelines and airflow visualization
  • Testing with NSF 49 National Safety Foundation for airflow visualization
  • Testing with the USP 800 Hazardous Drug Compounding for airflow visualization
  • Supports airflow visualization test for Semiconductor Semi-Standards Guidelines
  • Track routes of unwanted air flow infiltration and air balance of clean rooms
  • No particle contamination created, no particle contamination left behind, evaporating back to air we breathe
  • No cleanup of any kind after fogging of airflow
  • Superb 3D airflow modeling capabilities with high density fog, 533ml per minute converted to fog
  • Very low fog exit pressure, no exit turbulence as fog enters airflow
  • Compact, transportable, shipping case
  • Standard fog stream output from 5 meter transparent fog hose
  • For use in sterile rooms, medical rooms, ISO 1 to 9 suites and semiconductor clean rooms
  • High density fog visualization provides the best airflow visualization of any fogger in the market
  • Exhaust and ventilation studies around wafer handling systems
  • Air balance studies in Pharmaceutical suites and clean rooms

Cleanroom Ultrapure Fogger Advantages - Request a Quote

Very dense, Stream Fog
Very dense, Stream Fog
  • Highest fog density by converting 571 ml of liquid per minute to an ultrapure fog
  • Greatest visible airflow distances of 20 to 30 feet
  • Excellent volume of ultrapure fog at 5 cubic meters per minute
  • Total volume of 375 cubic meters of ultrapure fog per operating cycle
  • Fog operating time of about 70 minutes
  • No contamination is created, no cleanup is required, no contamination to the process
  • Adjustable fog volume and velocity to tune fog to your clean room dynamics
  • Roller castors for easy movement over floor
  • 80mm wide fog hose, 3.15"
  • User Friendly display and touch pads or wireless remote control FOB
  • Stainless steel contacts the LNG and DI Water for best purity of fog
  • very low fog exit pressure that does not create a disturbance to airflow
  • No metal contamination to fog using Stainless Steel water heater and LNG Dewar
  • Optional High Contrast Light accessory to provide high contrast between visualized airflow and background
  • Optional 350 mm Fog Nozzle accessory to spread standard fog stream out around equipement
  • Optional Y Adaptor accessory to convert single fog output into two separate fogger hoses for two separate fog inputs to your clean room
  • Optional T Adaptor accessory to convert single fog output into two Fog Curtain Wands to spread fog pattern out across wide area
  • Optional Y Adaptor for 2 fog hose output from AP35
  • Optional 1.3 Meter Fog Curtain Wand to spread fog stream out into a wide fog pattern
  • Easy DI Water and LN2 (LNG) fill up

* Fog distance measured at 40% humidity and air velocity of 90fpm. Visual fog distance decreases as humidity decreases or as airflow velocity increases.

20-30 feet visible fog distance
20-30 feet visible fog distance

Which Clean Room Fogger or Smoke Generator Is Best For My Applications?

Cleanroom UltraPure Fogger, 5 Cubic Meters per minute for 70 minutes with 20-30 feet visible distance.
  • When high fog purity, high fog volume and long visible airflow is needed
  • To visualizing airflow in large clean rooms, ceiling to floor
  • To fog exit velocity must not create turbulence
  • To needing to do 3D airflow modeling of airflow
  • When needing to do visualize airflow in larger cleanrooms
  • When 70 minutes of high purity fog duration is needed
  • When fog visibility of 20-30 feet distance is required
  • To fog Class 1 to Class 10,000 semiconductor, medical, pharmaceutical clean rooms


* Use Hand Gloves and Face Shield when filling LN2
Use 16M ohm DI water or WFI Pharmaceutical Water
Clean Room Fogger, 9cfm, 50 minutes Operation
  • When budget is lower, basic Fogger OK, minimal output turbulence
  • When 50 minutes of fog duration is useful with quick turnaround
  • When fog visibility for 7-8 feet distance is acceptable
  • When fogging gray areas behind the cleanroom
  • When fogging ≥ Class 10 or above in semiconductor or pharmaceutical clean rooms


CO2 Fogger, Vapor DiH2O Fogger, average 4cfm over 10 minutes
  • When Fogging Hazardous areas, No Electrical Outlet Available
  • When fog visibility for 4-6 feet distance is acceptable
  • When 10 minutes of fog duration is useful
  • When fogging small areas
  • Class 10 or above in semiconductor or pharmaceutical clean rooms
  • When fogging work benches

16 Meg ohm DI water is standard or WFI Water
Do not permit DI Water to go stagnant in the water chamber
** Use gloves when handling CO2 ice