Measurement of Aerosol Particles from Vibrated Lab Coats

Area of Science:

• Environmental Science
• Occupational Health
• Aerosol Science

Background:

• Laboratory coats are common personal protective equipment in research and healthcare settings.
• The generation and dispersion of airborne particles from clothing can impact air quality and exposure risks.
• Understanding particle emission from textiles under dynamic conditions is crucial for maintaining sterile or controlled environments.

Purpose of the Study:

• To quantify aerosol particles emitted from laboratory coats under vibration.
• To compare particle emissions from laboratory coats with those from a suit and a shirt.
• To investigate the effect of laboratory coat condition (new vs. used) on particle emission.

Main Methods:

• Aerosol particle size distribution measurement (0.3 μm to >10 μm).
• Controlled vibration applied to different garments: laboratory coats (new and used), a suit, and a shirt.
• Comparison of particle concentrations in the air surrounding the garments before and during vibration.

Main Results:

• Vibration of laboratory coats significantly increased the concentration of particles >5 μm.
• Submicron particle concentrations (<1 μm) were reduced by laboratory coat vibration.
• Used laboratory coats exhibited greater particle concentration variability under vibration compared to new lab coats or shirts.
• Vibration of the suit did not significantly alter particle concentrations.

Conclusions:

• Laboratory coat vibration demonstrably affects aerosol particle concentrations in the immediate environment.
• The condition of the laboratory coat influences its particle emission characteristics under vibration.
• Findings are relevant for optimizing work environments to minimize airborne particle exposure.