The performance of a new personal sampler, the Button Aerosol Sampler, was tested under controlled laboratory conditions for total and viable enumeration of airborne microorganisms. Test particles included inert PSL particles, fungal and bacterial spores, and bacterial vegetative cells. The collection efficiency was close to 100% for the entire particle size range studied (0.44 - 5.10 ¦Ěm). Penicillium melinii and Aspergillus versicolor demonstrated consistent culturability when sampling for 30 minutes to 8 hours, while less than 20% of Bacillus subtilis spores were culturable after 4-hour sampling. Pseudomonas fluorescens and Serratia marcescens vegetative cells were culturable only at RH=85% if sampled 10 minutes or less. The Button Aerosol Sampler was found to be suitable for the total enumeration of airborne microorganisms and for the viable enumeration of resistant spores. KEYWORDS: bacteria, fungi, bioaerosol, measurement technique, performance

• fungi: assessment, sampling and analysis

1. Aerodynamic versus physical size of spores: measurement and implication for respiratory deposition
2. Aerosol characteristics of airborne actinomycetes and fungi
3. Bioaerosol collection by a new electrostatic precipitator
4. Characteristics of airborne actinomycete spores
5. Collection of airborne microorganisms by a new electrostatic precipitator
6. Collection of airborne spores by circular single-stage impactors with small jet-to-plate distance
7. Collection of bioaerosol particles by impaction: effect of fungal spore agglomeration and bounce
8. Collection of fungal spores on air filters and spore reentrainment from filters into air
9. Development and evaluation of aerosol generators for biological materials
10. Effect of impact stress on microbial recovery on an agar surface
11. Effect of relative humidity on the aerodynamic diameter and respiratory deposition of fungal spores
12. Field Testing of New Aerosol Sampling Method With a Porous Curved Surface as Inlet
13. Fungal fragments as indoor air biocontaminants
14. Fungal spore source strength tester: laboratory evaluation of a new concept
15. Improved aerosol collection by combined impaction and centrifugal motion
16. Inlet sampling efficiency of bioaerosol samplers
17. Long-term sampling of airbome bacteria and fungi into a non-evaporating liquid
18. Performance characteristics of the button personal inhalable aerosol sampler
19. Performance of Air-O-Cell, Burkard, and Button samplers for total enumeration of airborne spores
20. Release of lead-containing particles from a wall enclosure
21. Release of Streptomyces albus propagules from contaminated surfaces
22. Techniques for dispersion of microorganisms into air  

1. Performance characteristics of the button personal inhalable aerosol sampler
2. Performance of Air-O-Cell, Burkard, and Button samplers for total enumeration of airborne spores  

1. Release of Streptomyces albus propagules from contaminated surfaces
2. Size distribution of bacterial and fungal bioaerosols in indoor air  

1. Aerosol characteristics of airborne actinomycetes and fungi
2. Bioaerosol collection by a new electrostatic precipitator
3. Characteristics of airborne actinomycete spores
4. Collection of airborne microorganisms by a new electrostatic precipitator
5. Collection of bioaerosol particles by impaction: effect of fungal spore agglomeration and bounce
6. Collection of fungal spores on air filters and spore reentrainment from filters into air
7. Development and evaluation of aerosol generators for biological materials
8. Effect of impact stress on microbial recovery on an agar surface
9. Effect of relative humidity on the aerodynamic diameter and respiratory deposition of fungal spores
10. Fungal fragments as indoor air biocontaminants
11. Improved aerosol collection by combined impaction and centrifugal motion
12. Inlet sampling efficiency of bioaerosol samplers
13. Long-term sampling of airbome bacteria and fungi into a non-evaporating liquid
14. Performance characteristics of the button personal inhalable aerosol sampler
15. Performance of Air-O-Cell, Burkard, and Button samplers for total enumeration of airborne spores
16. Performance of bioaerosol samplers: collection characteristics and sampler design considerations
17. Release of lead-containing particles from a wall enclosure
18. Release of Streptomyces albus propagules from contaminated surfaces
19. Source strength of fungal spore aerosolization from moldy building material
20. Techniques for dispersion of microorganisms into air