Whether used as a general anesthetic for oral surgery or as a means to provide patients with conscious sedation dentistry services, nitrous oxide has been a mainstay of dentistry for a long time. Nitrous oxide delivery systems allow you to control the mix of gas and oxygen a patient is receiving in order to provide the appropriate dose for the patient and the procedure. Some of these nitrous oxide units have digital flow controls while others are controlled manually. As with all dental equipment, nitrous oxide delivery equipment must be working properly to ensure patient safety and optimal treatment outcomes.
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| Company | Accutron, Inc. | Porter Instrument Company, Inc. | Porter Instrument Company, Inc. | Porter Instrument Company, Inc. |
| Item | Digital Ultra Oral Surgery Flowmeter | Matrx Digital MDM | Matrx Fraser MDM | PORTER MXR Flowmeter |
| Price | Inquire | Inquire | Inquire | Inquire |
| Description | The Digital Ultra™ Oral Surgery Flowmeter has the same unique operating features as the Digital Ultra™ Flowmeter, but includes a directional Y valve, | The only electronic mixer technology that maintains flow when you change gas mixture percentage. Also maintains percentage when you change flow rate. | Auto-Compensation: the only pneumatic mixer technology that maintains flow when you change gas mixture percentage. Also maintains percentage when you | The MXR 3000 is designed for those who would prefer an at-your-side vertical flowmeter. Precision, durability, and ease of operation have made this |
| Included Components | Digital Ultra™ Flowmeter, 4 Cylinder Portable System, Scavenging Circuit II | Not Available | Not Available | Not Available |
| Warranty | 2 years | Inquire | Inquire | 1 Year |
| Flow Control | Automatic Calibration | Digital | Digital | Total flow adjustment knob |
| Minimum Nitrous Flow Rate | 0 LPM | 0.1 LPM | 20 LPM | Yes |
| Alarm System | Audible and Visual (LED) Low O2 | Yes | No | No |
| Percentage Control | Yes | Yes | Yes | Yes |
| O2 Flush | Yes | Yes | Yes | Yes |
| D.I.S.S. Connection | Oxygen Inlet : Male DISS (CGA-1240)
Nitrous Oxide Inlet : Male DISS (CGA-1040) | Gas | Gas | Includes Diameter Index Safety System (DISS) for N2O and O2 connectors. |
| Auxiliary O2 Outlet | No | Yes | Yes | Yes |
| Portable | Portable or Central | Yes | Yes | Yes |
| Get Info | Not Available | Not Available | Not Available | Not Available |