TABLE 3.

Maximum aerosol concentrations during functional endoscopic sinus surgery with microdebrider

Particle size, μm	Aerosol concentration, particles/cm3
	Baseline mean	Non‐powered instrumentation Max	Sphenoid sinus irrigation Max	Head repositioning Max	Drape removal Max	Microdebrider Max
≥0.30 to <10.0	0.0300	0.840	1.32	2.70	7.57	0.660
≥0.30 to <0.90	0.0170	0.420	1.02	0.780	3.42	0.420
≥0.90 to <2.69	0.0120	0.300	0.240	1.32	2.94	0.180
≥2.69 to <10.0	0.00100	0.120	0.0600	0.600	1.20	0.180

Abbreviation: Max, maximum.