PM10 PARTICULATE REDUCTION ANALYSIS SUMMARY

OH-FEEL 500F08

NCSR “Demokritos” — Atmospheric Chemistry & Innovative Technologies Laboratory

1. Testing Facility Credibility

The Atmospheric Chemistry & Innovative Technologies Laboratory of the National Centre for Scientific
Research (NCSR) “Demokritos” is one of Greece’s leading government research institutions, specializing
in air quality analysis, atmospheric chemistry, and particulate matter monitoring.

All PM10 measurements were conducted by authorized laboratory personnel using certified and
calibrated instrumentation in accordance with European testing standards.

2. Description of the Test

  • Test Method: CEN/TS 16450:2013
  • Device Tested: OH-FEEL OH500F08
  • Test Environment: Isolated indoor environment (18 m²)
  • Operating Mode: Maximum continuous output
  • Monitoring Equipment: GRIMM 1.108 calibrated particle counter
  • Test Duration: 27 hours of continuous operation

Initial PM10 concentration levels were recorded prior to activation of the device.
Following activation of the OH-FEEL system at maximum output, PM10 concentrations were
continuously monitored throughout the full duration of the experiment.

3. Key Results

Initial PM10 concentration (pre-operation average):

  • 19.4 μg/m³

Final PM10 concentration after 27 hours of operation:

  • 10.6 μg/m³

Net Reduction:

  • PM10 reduced from 19.4 μg/m³ to 10.6 μg/m³
  • Overall reduction rate: 45.4%

4. Summary Statement

The results confirm that the OH-FEEL OH500F08 provides measurable and sustained reduction of fine particulate matter (PM10) in a controlled indoor environment. Continuous operation led to improved air quality through active particulate removal.

Report Date: October 21, 2022

Research Director: Dr. Th. Maggos


This summary is provided for clarity. For full data, measurements, and detailed methodology, please refer to the original laboratory PM10 test report.

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