North America's Largest Selection
of Aerosol Instrumentation

North America's Largest Selection of Aerosol Implementation

Particle Instruments, LLC
P.O. Box 270393
1048 Centerville Circle (shipping only)
Vadnais Heights, MN  55127-0393

Call 612.328.2722 or contact us at sales@particleinstruments.com

Particle Instruments, LLC
P.O. Box 270393
1048 Centerville Circle
(shipping only)
Vadnais Heights, MN 55127-0393

Call 612.328.2722 or email us.

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Air Filter Testing

Aerosol Measurement

LAP 322

The LAP 322 Aerosol Particle Size Spectrometer is a general purpose instrument which provides high resolution measurements over the 0.2 – 40 µm size range.  It features a wide concentration range (maximum of 104particles/cm3) and a comprehensive software package which makes it ideal for filter testing, indoor air quality measurements, atmospheric research, and environmental monitoring.

Topas

Pore Size Analysis

Pore Size Meter for Nonwovens and Porous Materials PSM 165

The PSM measures the Bubble Point Pore Size, Distribution of Mass Flow and Mean Flow Pore Size of porous materials. This bench top instrument operates over a pore size range of 0.5 to 600 µm.

Topas

Generators

Dust Disperser SAG 420

A device for generating stable aerosols with options for precise aerosol mass flow and mass dosing.

The SAG 420 can provide dosing ranges from 6 g/hr up to 12 kg/hr. Filling during operation is possible.

Topas

Atomizer Aerosol Generator ATM 230

An instrument for generating tracer particles, testing HEPA and ULPA filters as well as clean room measurements and certification of laminar flow boxes. 

It produces aerosols with known properties in accordance with the guideline VDI 3491. The generated polydisperse aerosols are mainly below 1 µm with an excellent constant particle size distribution and defined and high particle number concentration.  Suitable liquids are e.g. DOP, Emery 3004, DEHS, salt soultions and it can be also used to disperse PSL reference materials.

Topas

Dust Disperser SAG 440

Particularly suited for dosing dust containing a certain proportion of fibres with a constant and reproducible dosing rate over a wide concentration range. 

It has been especially developed to meet the requirements as defined by the ASHRAE 52.2 and DIN EN 779. Filling during operation is possible. 

Topas

Atomizer Aerosol Generator ATM 210, 210/H

This special model facilitates generation of aerosols into pressurised vessels up to 10 bar.

It produces aerosols with known properties in accordance with the guideline VDI 3491. The generated polydisperse aerosols are mainly below 1 µm with an excellent stable particle size distribution.Suitable liquids are e.g. DOP, Emery 3004, DEHS, salt soultions and it can be also used to disperse PSL reference materials.

Topas

Atomizer Aerosol Generator ATM 240, 241, 242

The generator is designed for generation of tracer particles, verifying measurements in very large clean rooms and for tests of HEPA and ULPA-filter media.

It produces aerosols with known properties in accordance with the guideline VDI 3491. The generated polydisperse aerosols are mainly below 1 µm with an excellent constant particle size distribution and defined and high particle number concentration.Suitable liquids are e.g. DOP, Emery 3004, DEHS, salt soultions and it can be also used to disperse PSL reference materials. 

By varying of nozzle pressure, number of switched-on nozzles and the aerosol temperature (besides ATM 241) one can adjust both particle production rate and particle size distribution in a wide range.

Topas

Atomizer Aerosol Generator ATM 220, 225

An aerosol generator for producing a test aerosol with defined characteristics especially for qualitative tests of filters for suspended matter (HEPA and ULPA filters), function test at laminar flow boxes and acceptance measurement in clean rooms. 

It produces aerosols with known properties in accordance with the guideline VDI 3491. The generated polydisperse aerosols are mainly in the size range 0.2 to 0.5 µm with a very high permanence of the particle size distribution and a defined and high particle number concentration.

A further range of application for aerosol generators is calibration of measuring devices and visualization of currents. That enables measurements of local velocities and flow profiles of the tracer particles by means of optical methods.

The Atomizers can also be used to disperse PSL reference materials and so to produce monodisperse particles. 

Topas

Dust Generators SAG 410

General-purpose dry powder disperser that may be used for a variety of  applications in aerosol and powder science, industrial processes and quality assurance tasks. 

The technique for the dispersion of dry dust and powders comprises two steps, the continuous supply of material to the disperser and thedispersal of the material as an aerosol.

Topas

Atomizer Aerosol Generator ATM 226

An aerosol generator for producing a test aerosol with defined characteristics especially for qualitative tests of filters for suspended matter (HEPA and ULPA filters), function test at laminar flow boxes and acceptance measurement in clean rooms. 

Compared to Atomizer Aerosol Generator ATM 220 or ATM 225 this instrument features a compact stainless steel housing (easy-to-clean), a direct connection with mains supply and a higher mass output. 

It produces aerosols with known properties in accordance with the guideline VDI 3491. The generated polydisperse aerosols are mainly in the size range 0.2 to 0.5 µm with a very high permanence of the particle size distribution and a defined and high particle number concentration.

Topas

VIPAS 300XL High-Output Large-Particle Aerosol Generator

The VIPAS 300XL produces a stable and high concentration of aerosol particles in the 0.1 to 10µm size range.  It operates continuously on compressed air for up to three hours, requiring no mechanical pump.  The VIPAS 300XL meets ASHRAE 52.2 and EN 779 requirements.

VIPAS

Diluters & Conditioners

HDS 561

The HDS High Dilution System is used for measuring very high concentration aerosols.  This instrument has a wide range of dilution ratios, adjustable from 1:100 to 1:100,000.  The flow-rate is customized by Topas and adaptable to different volumes, from 28 l/min, up to 100 l/min.

Topas

Electrostatic Aerosol Neutralizer EAN 581

The electrostatic aerosol neutralizer conditions the charge distribution on test dusts as well as other aerosols for example when evaluating separation techniques such as cyclones, filter s or impactors. Charge equilibrium can be controlled by mixing positive and negative ions in a precise manner.

Controllable generation of ions with separate adjustment of both positive and negative ion sources are provided. No radioactive source is required. It's easy to integrate into existing filter test systems and othe test apparatus.

Topas

Dilution System for Aerosols DIL 550

The dilution system is designed to accurately dilute aerosols to produce a defined particle concentration and carry out certain measuring tasks.

The main application of the dilution system DIL 550 is in the verification of test aerosols for testing clean rooms. By using the dilution system DIL 554 upstream of a particle counter, e.g. LAP 340, a dilution factor of up to 100 can be achieved. Thereby particle concentrations of  >106 Particles per cf (1 cf = 28.3 l) can be reduced to 104 cf–1. This will put the particle concentration well within the range of standard particle counters.

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Sample Switching Unit SYS 520

The Laser Aerosol Particle Size Spectrometer series LAP can optionally measure two different samples by using the Sample Switching Unit SYS 520. The instrument was especially developed for this application and realizes a quick changing between sample flow I, a flushing routine (HEPA-filter) and sample flow II.

Controlling the switching unit is only possible with the aerosol spectrometers series LAP with sample switching option. If you do not have such a LAP 320/U or LAP 321, Topas can install the needed control output in your instrument. 

Topas

Rectangular Sampling Probe SYS 529

The sample probes have a rectangular inlet which is gradually reduced to a circular tube connector. 

The design of the probe is based on the ISO CD 14644, Part 3 which defines a maximum width to height ratio of 1:6.

The manufacturing process ensures that all internal surfaces are polished to avoid material deposits and their potential to create false test results.

Topas

Dilution System for Aerosols DIL 554

The dilution system is designed to accurately dilute aerosols to produce a defined particle concentration and carry out certain measuring tasks.

The main application of the dilution system DIL 550 is in the verification of test aerosols for testing clean rooms. Compared to the DIL 550 the innovative features are an easy-to-clean compact stainless steel housing and a mobil use by battery-operation (optional also wall power supply). 

By using the dilution system DIL 554 upstream of a particle counter, e.g. LAP 340, a dilution factor of up to 100 can be achieved. Thereby particle concentrations of >106 Particles per cf (1 cf = 28.3 l) can be reduced to 104 cf–1. This will put the particle concentration well within the range of standard particle counters.

Topas

Dynamic Dilution System for Aerosols DDS 560

The Dynamic Dilution System is designed to definitely and reproducibly dilute aerosols according EN ISO 14644 part 3with possibility to adjust the dilution factor.

A simple front panel control knob allows adjustment of the dilution ratio from 5:1 to 370:1at flow ratio from 0.5 to 3.0 lpm.

Topas

DDU Diffusion Dryer DDU 570

The diffusion dryer consists of an Acrylic tube filled with silica gel with 2 caps on its ends and tube connectors. The aerosol streams through 3 screen pipes surrounded by dry silica gel which serves as drying agent.

Because the aerosol does not get into contact with the drying agent there is nearly no loss of particle material.

Topas

Filter Test Rigs

Filter Test Rigs

Topas manufactures standard and custom test systems for the following:

  • Media
  • Oil mist separators
  • Standard filters

Visit the Topas website for a complete line of filter testing systems, stands and complete filters.  Associated standards in both German and English are also provided.

Topas