scholarly journals COLLECTION EFFICIENCY OF AIR-CLEANING AND AIR-SAMPLING FILTER MEDIA

1954 ◽  
Author(s):  
J Fitzgerald ◽  
C Detwiler
Keyword(s):  
Collection Efficiency ◽  
Air Sampling ◽  
Filter Media ◽  
Air Cleaning

SO2 sorption characteristics of air sampling filter media using a new laboratory test

1997 ◽  
Vol 31 (7) ◽  
pp. 1041-1047 ◽  
Author(s):  
Stuart Batterman ◽  
Igor Osak ◽  
Charles Gelman
Keyword(s):  
Laboratory Test ◽  
Air Sampling ◽  
Filter Media ◽  
Sorption Characteristics

scholarly journals Air sampling filtration media: Collection efficiency for respirable size-selective sampling

2015 ◽  
Vol 50 (1) ◽  
pp. 76-87 ◽  
Author(s):  
Jhy-Charm Soo ◽  
Keenan Monaghan ◽  
Taekhee Lee ◽  
Mike Kashon ◽  
Martin Harper
Keyword(s):  
Collection Efficiency ◽  
Air Sampling ◽  
Selective Sampling

scholarly journals Operative and technical modifications to the Coriolis® µ air sampler that improve sample recovery and biosafety during microbiological air sampling

2020 ◽  
Author(s):  
Nuno Rufino de Sousa ◽  
Lei Shen ◽  
David Silcott ◽  
Charles J. Call ◽  
Antonio Gigliotti Rothfuchs
Keyword(s):  
Collection Efficiency ◽  
Air Sampling ◽  
Optimal Sampling ◽  
Polystyrene Microspheres ◽  
Air Sampler ◽  
Technical Modifications ◽  
Level 3 ◽  
Sample Recovery ◽  
Technical Solutions ◽  
Biosafety Level

ABSTRACTDetecting infectious aerosols is central for gauging and countering airborne threats. In this regard the Coriolis® µ cyclonic air sampler is a practical, commercial collector that can be used with various analysis methods to monitor pathogens in air. However, information on how to operate this unit under optimal sampling and biosafety conditions is limited. We investigated Coriolis performance in aerosol dispersal experiments with polystyrene microspheres and Bacillus globigii spores. We report inconsistent sample recovery from the collector cone due to loss of material when sampling continuously for more than 30 min. Introducing a new collector cone every 10 min improved this shortcoming. Moreover, we found that several surfaces on the device become contaminated during sampling. Adapting a HEPA-filter system to the Coriolis prevented contamination without altering collection efficiency or tactical deployment. A Coriolis modified with these operative and technical improvements was used to collect aerosols carrying microspheres released inside a Biosafety Level-3 laboratory during simulations of microbiological spills and aerosol dispersals. In summary, we provide operative and technical solutions to the Coriolis that optimize microbiological air sampling and improve biosafety.

scholarly journals Comparison of three air samplers for the collection of four nebulized respiratory viruses

2020 ◽  
Author(s):  
Jasmin S Kutter ◽  
Dennis de Meulder ◽  
Theo M Bestebroer ◽  
Ard Mulders ◽  
Ron AM Fouchier ◽  
...  
Keyword(s):  
Influenza A ◽  
Infectious Virus ◽  
Electrostatic Precipitator ◽  
Collection Efficiency ◽  
Research Question ◽  
Air Sampling ◽  
Respiratory Viruses ◽  
Cascade Impactor ◽  
Vulnerable Groups ◽  
Tract Infections

AbstractViral respiratory tract infections are a leading cause of morbidity and mortality worldwide. Unfortunately, the transmission routes and shedding kinetics of respiratory viruses remain poorly understood. Air sampling techniques to quantify infectious viruses in the air are indispensable to improve intervention strategies to control and prevent spreading of respiratory viruses. Here, the collection of infectious virus with the six-stage Andersen cascade impactor was optimized with semi-solid gelatin as collection surface. Subsequently, the collection efficiency of the cascade impactor, the SKC BioSampler, and an in-house developed electrostatic precipitator was compared. In an in-vitro setup, influenza A virus, human metapneumovirus, parainfluenza virus type 3 and respiratory syncytial virus were nebulized and the amount of collected infectious virus and viral RNA was quantified with each air sampler. Whereas only low amounts of virus were collected using the electrostatic precipitator, high amounts were collected with the BioSampler and cascade impactor. The BioSampler allowed straight-forward sampling in liquid medium, whereas the more laborious cascade impactor allowed size fractionation of virus-containing particles. Depending on the research question, either the BioSampler or the cascade impactor can be applied in laboratory and field settings, such as hospitals to gain more insight into the transmission routes of respiratory viruses.Practical ImplicationsRespiratory viruses pose a continuous health threat, especially to vulnerable groups such as young children, immunocompromised individuals and the elderly. It is important to understand via which routes these viruses can transmit to and between individuals that are at risk. If we can determine the amount of a certain respiratory virus in the air, then this will help to predict the importance of transmission through the air for this virus. Most currently available air sampling devices have not been designed to collect infectious viruses from the air. Therefore, we here optimized and compared the performance of three air samplers for four different respiratory viruses.

Filter Media for air Sampling

1954 ◽  
Vol 15 (4) ◽  
pp. 290-296 ◽  
Author(s):  
Leslie A. Chambers
Keyword(s):  
Air Sampling ◽  
Filter Media

Collection Efficiency of Various Filter Media in Diesel Exhaust

2001 ◽  
Author(s):  
M.S. Nikitidis ◽  
T. Manikas ◽  
D. Zarvalis ◽  
N. Divinis ◽  
C. Altiparmakis ◽  
...  
Keyword(s):  
Diesel Exhaust ◽  
Collection Efficiency ◽  
Filter Media
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