Table 2.

Breakdown of AC and electric fan frequency and time period of use

	N	(%)	N	(%)	N	(%)
Frequency of Use
	AC (cooling)		AC (fan-only)		Electric Fan

All the time (every night)	120	(23.4%)	5	(7.2%)	52	(18.7%)
Very frequently (~90% of the nights)	121	(23.6%)	5	(7.2%)	76	(27.3%)
Frequently (~70% of the nights)	101	(19.7%)	5	(7.2%)	51	(18.3%)
A moderate amount (~50% of the nights)	78	(15.2%)	14	(20.3%)	47	(16.9%)
Occasionally (~30% of the nights)	63	(12.3%)	26	(37.7%)	36	(12.9%)
Rarely (~10% of the nights)	30	(5.8%)	14	(20.3%)	16	(5.8%)

subset total	513^b	(100.0%)	69^j	(100.0%)	278^g	(100.0%)
Time Period of Use
	AC (cooling)		AC (fan-only)		Electric Fan

(Almost) always on	185	(36.1%)	18	(26.1%)	114	(41.0%)
Turned on few hr. (≥1 hr.) prior to getting in bed/when got home in the evening and turned off after waking up	85	(16.6%)	8	(11.6%)	21	(7.6%)
Turned on around the time (< 1 hr.) of getting in bed and turned off after waking up	119	(23.2%)	21	(30.4%)	100	(36.0%)
Turned on prior to bedtime but turned off in the middle of the night	81	(15.8%)	16	(23.2%)	19	(6.8%)
Turned on prior to bedtime but turned off when going to sleep	32	(6.2%)	4	(5.8%)	16	(5.8%)
Turned on sometime during the night and turned off after waking up	11	(2.1%)	2	(2.9%)	8	(2.9%)

subset total	513^b	(100.0%)	69^j	(100.0%)	278^g	(100.0%)

Subset of respondents who…

…used AC (cooling) OR AC (fan-only)

…used AC (cooling)

…used AC (cooling) AND electric fans

…used AC (cooling) AND opened windows

…have AC installed in bedroom (exclude those living in studio apartment)

…did NOT have AC installed in bedroom (exclude those living in studio apartment)

…used electric fans

…used fans but have none-ceiling type fan(s)

ⁱ

…opened windows