Dent Vent

Dent Vent Dental Operatory Ventilation Equipment

01/21/2021

Does that face mask really protect you? L Bowen. Applied Biosafety. 2010; 15(2): 67-71.

An interesting study that compares the filter efficiencies of different mask types. The researcher used mannequins wearing an N95 mask, surgical mask, a bandana, and a dust musk. An aerosol with 1-2.5 micron (100-250 nanometers) particles was used to challenge the masks. Researchers found mean filter efficiencies of 86.8% for the N95, 33% for the surgical mask, 11% for bandana, and 6% for dust masks. The author notes the challenge particle size is much larger than a virus particle, but notes that droplet nuclei containing virus particles are .5-12 microns. Visit dentairtech.com for more information.

01/21/2021

How well do N95 respirators protect healthcare providers against aerosolized influenza virus? W Bischoff MD, PhD, F SHE1, J Turner PhD, G Russell, M Blevins, E Missaiel MD, and J Stehle Jr PhD. Infection Control and Hospital Epidemiology. 2019; 40: 232-234.

This interesting study placed participants in an enclosed study chamber, wearing an N95 mask, and subjected them to a diluted and aerosolized version of the Influenza A vaccine. Researchers then used RNA analysis to examine nasal swabs from the participants. Three of the twenty nine participants, or roughly 10%, had enough viral RNA detected to cause infection. This study is available on google scholar or visit dentairtech.com for links.

New intake design for our direct exhaust system, studies indicate a majority of particles in dental drilling create 50-7...
01/20/2021

New intake design for our direct exhaust system, studies indicate a majority of particles in dental drilling create 50-70 nanometer (.05 micron) particles, too small for hepa filters and n95 masks(.1-.3 microns). This ventilation system reduces exposure to silica nanoparticles, mercury vapors, ceramic dust, zirconia dust, bacteria, and viruses. Also turns any operatory with doors into a negative pressure isolation room. Features a rechargeable light to keep intake 6-10 inches from patient workspace. We created a dental air quality information resource, dentairtech.com.

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1964 Old Route 47
Monticello, IL
61856

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