Portable Particle Counters – Models 3905 and 3910

6-channel portable particle counters for cleanroom certification

Request Quote

Kanomax Portable Particle Counters – Models 3905 and 3910 are the smallest 6-channel portable particle counters in the industry. They measure at 1.0 CFM (28.3 LPM) and 1.77 CFM (50 LPM), respectively. Both models feature 0.3-micron minimum sensitivity, large color touch screens with a streamlined and user-friendly interface programmed with different standards to help guide users through the measuring and certification process.

An optional Climomaster hot-wire environmental sensor is available. It provides the ability to measure air velocity, temperature and humidity, making the 3900 series portable particle counters the ultimate tools for cleanroom certification.

Read More

More Information

Navigate the tab section below to see this product’s Features & Benefits, Specifications, Resources, and more.

  • 0.3 µm, 0.5 µm, 1.0 µm, 3.0 µm, 5.0µm, 10.0µm
  • 28.3 lpm (1.0 cfm) or 50 lpm (1.77 cfm) flow rate speeds the sampling process
  • Simultaneously measures and displays up to 6 particle sizes from 0.3 to 10 microns
  • Fully compliant with ISO 21501-4 calibration standard
  • Enables you to certify cleanrooms up to ISO Class 2
  • 50LPM and 1 CFM flow rate respectively and a 0.3micron sensitivity.
  • Upload from blueprint your cleanroom layout
  • Optional CLIMOMASTER environmental sensor provides the ability to measure air velocity, temperature and humidity making these instruments the ultimate tools for cleanroom certification.
  • Intuitive ICON-driven screens and menus are easy to learn and simple to use
  • NIST TRACEABLE CALIBRATION Certificate* comes standard
  • 3910/3905 can store up to 10,000 records of particle count data from up to 6 particle channels and the configurable recipe database can store up to 50 recipes for sampling and reports.
  • All data can be quickly and reliably transferred to a computer, a Facility Monitoring System or Building Automation System.
  • Secure data transfer to a USB Flash Drive
  • 21 CFR Part 11 compliant with IQ/OQ documentation available
  • Built-in printer and onboard datalogging (up to 10,000 records) is standard on both 3910 /3905
  • Flexible communication with these instruments is made possible by the integrated Ethernet, RS-485, USB and Flash Drive memory card interfaces
  • Monitor and verify cleanrooms to meet ISO 14644: 2015 cleanroom classification
  • Monitor surgical rooms
  • Filter testing
  • IAQ investigation
  • Data center cleaning

Main Unit Specifications
Flow Rate1.0 CFM (28.3 LPM)
Flow Rate1.77 CFM (50 LPM)
Measurement Specifications
Measuring Particle Size0.3 µm, 0.5 µm, 1.0 µm, 3.0 µm, 5.0µm, 10.0µm
Counting Efficiency50% @ 0.3 µm
Zero CountLess than 1 count / 5 minutes
General Specifications
InterfaceEthernet, USB, Memory card slot (MMC)
Data Storage10,000 measurement data
Environmental SensorAir Velocity, Temperature, Relative Humidity and Pressure
PowerAC 100 – 240 V or Li-ion Battery
DimensionsW 7.9 x D 7.9 x H 8.1 inch
Weight14.2 lbs (6.44 kg)
Warranty2 year
What’s includedQuick-start guide, AC adapter, zero filter, Isokinetic probe with 79 inch (2m) tubing, inlet nozzle, data processing software, memory card, 2 rolls of cleanroom-grade printer paper, 1 x Li-ion battery and calibration certificate

User Manual - Model 3905


User Manual - Model 3910


Data Sheet (English)


Data Sheet (Espanol)


Application Note - Guide to Selecting a Particle Counter for Cleanroom Certification


Application Note - Making ISO Cleanroom Certification Easy with Kanomax Particle Counters


Application Note - Let Kanomax Help You Meet USP 797 Regulations




  • 3910 Zero Filter: Model 3910-04
  • Portable Printer: Model DPU-S245
  • Portable Printer Paper: Model TP-5RLPK
  • Portable Printer Cable: Model 6000-03
  • 3910 Validation Document (IQ/OQ): Model CRVAL
  • 3910 Battery Charger: Model 3910-10
  • 3910 Li-ion Battery: Model 3910-12
  • 3910 Pressure Sensor with Cable: Model 3910-11
  • 2M Probe Cable: Model 6531-06
  • 5M Probe Cable: Model 6531-09
  • 10M Probe Cable: Model 6531-10
  • 20M Probe Cable: Model 6531-11

Kanomax Portable Particle Counter - Overview

View Video

What types of particle counters does Kanomax offer?

We have several varieties including: handheld particle counters in 3 and 5 channel versions; 6-channel portable particle counters with up to a 50LPM flow rate; a highly specialized condensation particle counter that features a 0.015 micron sensitivity making it ideal for Nano-sized particle counting; and a fixed cleanroom monitoring system that can be integrated with a PC for 24/7 monitoring.

Which particle counter is right for my application?

We have a guide on selecting the right particle counter that you can view here.

This guide will explain the main differences between the handheld and portable particle counters and will help you choose the right one for your needs.

Do the particle counters come with a NIST traceable certificate?

Yes, all our instruments come with a calibration certificate.

How often does the unit need to be calibrated?

Annual calibration is recommended to ensure accuracy. However, this can vary based on how often the particle counter is used and the environments it’s used it. Also, some companies have an SOP in place that specifies how often the instrument will need to be serviced. More specifically, regulatory compliances may dictate the calibration interval.

What operating systems is the software compatible with?

You can measure clean air between -4 and 158°F (-20 to 70°C) in an environment with no visible condensation. (Please note: the temperature range given is for the probes)

Windows XP (32-bit only), Vista, & Windows 7.

Can I use Kanomax particle counters to certify my ISO Cleanroom?

Absolutely. Just make sure you select a counter that can measure the specific sized particles you need to measure. Handheld model 3888 and portable models 3905 & 3910 are pre-programmed with helpful standards modes that simplify the certification process.

I need to certify a pharmaceutical cleanroom with special regulations, what support does Kanomax offer for the pharmaceutical industry?

Our portable units are 21 CFR part 11 compliant, and an IQ/OQ is available for purchase if needed.

Why does the pharmaceutical industry need this IQ / OQ qualification process?

Validation executed as a global exercise, is a method of establishing documented evidence that shows that we have a high degree of assurance that our manufacturing process will consistently yield a product of predetermined. If a manufacturer fails to do that, the results can be disastrous. It can cost the client hundreds of thousands of dollars, increase the risk of product recall and potentially contribute to a loss of market share.

I need to measure other parameters such as temperature, humidity and airflow in the cleanroom. Will I need to purchase a separate instrument?

No, you don’t need a separate instrument. Model numbers 3889, 3905 & 3910 can measure these parameters just by adding optional probes to the particle counter.

I need 24/7 monitoring for my cleanroom. Does Kanomax make particle counters for this type of project?

Yes, these particle counters can be operated both as handheld instruments or remotely through a PC. The remote operation capabilities of these instruments will allow for convenient 24/7 monitoring for a cleanroom.

What does the portable model 3910 come with?

It includes: AC adapter, zero filter, isokinetic probe with 79″ of tubing, inlet nozzle, data processing software, memory card, 2 rolls of clean printer paper, 1 x Li-ion battery and calibration certificate.

Our sales representatives are here to help you find the right instrument for your application. Fast.

Request a quote today to find the product you need with expert assistance.

Request a Quote Today