Calibration of the Anderson 2000 disposable air sampler

Area of Science:

• Environmental microbiology
• Aerosol science
• Public health

Background:

• Airborne microbial particles are significant in respiratory infections, particularly in hospital settings.
• Accurate collection of specific particle sizes is essential for understanding pathogen transmission.
• Existing sampling methods may have limitations in efficiency or ease of use.

Purpose of the Study:

• To evaluate the Anderson Disposable Sampler for collecting microbiological aerosols.
• To determine the efficiency of the sampler for particles relevant to hospital-acquired infections.
• To assess the suitability of the sampler for various environmental monitoring applications.

Main Methods:

• The Anderson Disposable Sampler was utilized for airborne particle collection.
• Particle size collection efficiency was assessed, focusing on the 0.8 to 10.5 micron range.
• The 50% effective cut-off diameter of stage 1 was determined to be 8.0 microns for spherical particles.

Main Results:

• The sampler demonstrated high collection efficiency, approaching 100% for particles between 0.8 and 10.5 microns.
• The instrument is user-friendly, employing standard Petri dishes and requiring no flow regulator.
• Effective cut-off diameter for stage 1 is 8.0 microns, relevant for infectious particle sizes.

Conclusions:

• The Anderson Disposable Sampler is highly effective for collecting microbiological aerosols in a critical size range.
• Its ease of operation and high efficiency make it suitable for monitoring microbial air quality in hospitals and clean rooms.
• The sampler is a valuable tool for research and applications concerned with airborne pathogens and infection control.