Nitrogen dioxide

Wear appropriate personal protective clothing to prevent skin contact.

Wear appropriate eye protection to prevent eye contact.

Eyewash fountains should be provided in areas where there is any possbility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection.

Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.]

Respirator Recommendations: Up to 20 ppm

Assigned Protection Factor (APF)	Respirator Recommendation
APF = 25	Any supplied-air respirator operated in a continuous-flow mode. Substance causes eye irritation or damage; eye protection needed.
APF = 50	Any self-contained breathing apparatus with a full facepiece.
APF = 50	Any supplied-air respirator with a full facepiece.

Respirator Recommendations: Emergency or planned entry into unknown concentrations or IDLH conditions:

Assigned Protection Factor (APF)	Respirator Recommendation
APF = 10,000	Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode.
APF = 10,000	Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus.

Respirator Recommendations: Escape conditions:

Assigned Protection Factor (APF)	Respirator Recommendation
APF = 50	Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus