Christensen, R P <br/><br/>
Efficiency of 42 brands of face masks and 2 face shields in preventing inhalation of airborne debris.  [electronic resource] 

 -  General dentistry   
 - 414-21 p.  digital 
<br/><br/> Publication Type: Comparative Study; Journal Article 
<br/><br/><label>ISSN: </label>0363-6771 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Air Microbiology<br/>Air Pollution, Indoor<br/>Analysis of Variance<br/>Coloring Agents<br/>Dentists<br/>Filtration<br/>Humans<br/>Humidity<br/>Inhalation<br/>Masks<br/>Occupational Exposure<br/>Staphylococcus aureus