Table 3.

Atmospheric conditions at evaluation points throughout the study

	Treatment	Baseline	1 Month	3 Month	6 Month
Mean temperature (°F)	T	60±15	59±16	49±17	39±17
	S	60±12	61±16	46±17	38±15
Dew point (°F)	T	47±15	48±16	39±19	27±16
	S	49±12	48±17	33±16	28±16
Relative humidity (%)	T	64±13	68±18	71±22	65±20
	S	67±13	64±13	63±315	70±21

Note: Data are presented as mean ± SD.

Abbreviations: T, true treatment; S, sham treatment.