Table 1. Description of OSHA guidelines on quantitative respirator fit testing procedures [17].

Exercises	Exercise Procedure	Measurement Procedure
1) Bending Over	Bend at the waist, as if going to touch their toes for and inhale 2 times at the bottom.	20 second ambient sample, followed by a 30 second respirator sample.
2) Talking	The test subject will recite the Rainbow Passage loud enough to be heard by another person in the room.	30 second respirator sample.
3) Head Side-to-Side	Turn head from side to side for and inhale 2 times at each extreme.	30 second respirator sample.
4) Head Up-and-Down	Slowly move head up and down for inhale 2 times at each extreme.	30 second respirator sample, followed by a 9 second ambient sample.