KANOMAX 3905, Airborne Particle Counter (1 CFM)



Optimal Screening Tool for Nano Particles, National Institute for Occupational Safety and Health recommends these kinds of direct-reading instruments and filter-sampling with lab analysis to obtain particle number, size and shape, the degree of agglomeration and mass concentration of elemental constituents in nanoparticles. Direct reading instruments include both optical Particle Counters and Condensation Particle Counters such as the Kanomax 3800.

Standard Features

  • 28.3 L/min (1.0 CFM) Flow Rate
  • Compliant with ISO 21501-4 and 21 CFR Part 11
  • Simultaneous measurements of 6 particle sizes
  • Store up to 10,000 Measurements
  • Stainless Enclosure
  • 2 Year Warranty


  • Indoor Air Quality Investigation
  • Aerosol Research
  • Filter Test
  • Environmental Monitoring for Electronics, Food Processing, Pharmaceutical etc.

Additional information

Light Source

Laser diode

Particle Channel Sizes

0.3, 0.5, 1.0, 3.0, 5.0, 10.0 micron meters

Flow Rate

28.3 LPM (1.0 CFM)

Zero Count Level

Less than 1 count per 5 minutes

Counting Efficiency

50% 20% at 0.3 micron meters, 100% 10% at 0.5 micron meters

Concentration Limits

More than 500,000 particles/ft3 at 10% coincidence loss

Environmental Sensor

Air velocity, temperature, relative humidity, and pressure

Vacuum Source

Internal Pump


Internal HEPA filtered to more than 99.97% at 0.3 micron meters


Built-in Thermal Printer


6.4'' Color Touch Screen


Stainless Steel


Ethernet, USB, Memory Card Slot (MMC)

Data Storage

Up to 10,000 sample records


Password authentication and management, secure data, and audit trails (meets 21 CFR Part 11 compliance)


ISO 14644-1, EU GMP, FS209E, and New Chinese GMP


ISO 21501-4, JIS B9921, CE

Power Supply

Li-ion battery or AC adapter (100 to 240V)


Removable/rechargeable Li-ion batteries (2 battery slots)

Operating Range

50 to 104°F (10 to 40°C), 20 to 85%RH with no visible condensation

Storage Range

14 to 122°F (-10 to 50°C), up to 98%RH with no visible condensation

Dimensions (H x W x D)

7.9 x 8.1 x 7.9 inches (200 x 205 x 200 mm) without handle


14.2 lbs (6.4 kg) with two batteries


2 Years

Included Accessories

Quick-start guide, operation manual, zero filter, 1 x Li-ion battery, AC adapter, sampling tubing data storage card, isokinetic probe, data processing software, printer paper, NIST Certificate

  • Carrying Case
  • Spare Li-ion Battery
  • Tripod
  • External Battery Charger
  • ClimomasterTM Probe (Air Velocity, Temperature, Relative Humidity)
  • Pressure Sensor
  • Alarm Output Cable
  • IQ/OQ Validation Document
Additional Resources:
Data Sheet
User Manual