TABLE 1.

The four treatments design.

Treatment	Factor
	Study 1	Study 2	Odor awareness	Ventilation recommendation
1	N = 58	N = 91	Positive	Yes
2	N = 53	N = 89	Negative	Yes
3	N = 49	N = 81	No	Yes
4	N = 70	N = 89	No	No