Dental Aerosol Extractor (DAX)
Cleaner & Safer from viruses, bacteria, and other pollutants set free during chair-side procedures
DAX is the heart of providing a clean safe environment during dental procedures. Inches from the mouth, DAX efficiently removes the aerosol air/water particles along with viruses, bacteria, enamel dust, and many other troublesome and sometimes downright dangerous particles and/or gas pollutants. It captures these pollutants before they can escape and cause damage. The air is then cleaned and purified from these pollutants before being returned to the operatory.
Frequently Asked Questions
Why is the Dental Aerosol Extractor (DAX) necessary for your dental practice?
How effective is the chair-side air funnel / shield?
DAX has a unique ergonomically shaped and patent pending chairside air funnel/shield designed to capture the air and water aerosol exiting the mouth during Aerosol Generating Procedures (AGP) in the dental setting. It was designed by Dr. V. Kim Kutsch, DMD. who has over 40 years of dental experience treating patients and designing dental products for dental professionals. He has a deep understanding how aerosols exit the mouth. Concerned about the need for an extra oral vacuum designed specifically to capture virus sized particles, his research led to the development of DAX, and its unique funnel/shield.
There are two parts, a funnel attached to a hose and clear see through shield that snaps onto the funnel. The patent pending see through shield is the key to directing and capturing the air and water droplets existing the oral cavity. Clean new shields can easily be snapped into place between patients and sanitized and cleaned later. Because of their low cost they can be replaced often as need be.
Will the hose / funnel be easy to position?
What other filtering system does the DAX utilize?
Can the HEPA filter trap particles less than 1 micron in size?
Yes, the DAX has a HEPA filter for trapping 0.01 to 100 micron-sized particles. DAX’s air filter will effectively trap particles such as viruses, bacteria, fungus, dust, and other pollutants down to 0.01-micron size. See chart showing types of and size of pollutants removed.
How does is the air flow optimized for effective filtering?
In addition, a lower speed of 50 miles per hour and 190 cubic feet per minute can be chosen when dental professionals feel that the lower speed is adequate for that particular dental procedure. Also, a quitter background mode of 120 cubic feet per minute can be chosen. At that speed DAX can clean the air in the whole operatory space every 7 minutes.
HEPA Filter Evaluation
Particle Filtration System Explained
Size of Particulate Removed
HEPA stands for “High Efficiency Particulate Air”. HEPA is an official designation agreed to by IEST (United States) , ISO (International), and EN (Europe). Each has its own performance standards and methods of testing for different classifications of HEPA filters. Don’t be confused by terms like “HEPA Type” and “HEPA Like” filters. They all fail the standard. These are purely marketing terms.Read More
Flow Speed and Surface Area
According to a NASA study which deals with particulates in the air during spacecraft travel, a correctly designed HEPA vacuum filtration system would have an air flow velocity of no more than 5 liner feet per minute at the filter interface. This insures the HEPA filter effectively traps the particles smaller than 0.3 microns. The DAX unit is designed and calibrated to meet these requirements with a maximum flow of 3.7 linear feet per minute velocity. This represents the core of the DAX system, by design with combined optimization that coordinates fan speed, filter size and speed, hose diameter, and speed of air at the nozzle. Balance is the key.
Diffusion of small particles are the most difficult particles to capture. Here is how diffusion works. Small diameter particles are more susceptible to Brownian motion and Van der Waal forces, and are intermittently knocked off the streamline path by molecular collisions and attraction. Due to randomness of the diffusional collisions, the particles have a chance to approach the fiber surface and get trapped. This is why the air velocity at the filter matters. If the air speed through the air filter is too great, diffusion is less effective and small particles like viruses can pass through the HEPA filter.
Each HEPA Type C Filter Tested and Certfied
Filter Replacement Warning Lights
The DAX unit has warning lights that when lit signal it is time to replace the HEPA carbon filters.