In the past 12 months, did you, or someone else, on purpose test
all of the carbon monoxide detectors in your home, either by
pressing the test button or by using a commercial carbon
monoxide detector test kit? Would you say…?

Response Unweighted Frequency Weighted Percentage Standard Error 95% Confidence Limit
Lower Upper
Yes, all 1710 55.1 1.2 52.8 57.4
Yes, some 417 15.2 0.9 13.5 16.9
None 914 29.7 1.1 27.6 31.8

Among respondents who reported having one or more carbon monoxide
detectors installed in their home, excluding unknowns and refusals.
 
On Questionnaire Split B