Air Carrier Captain reported a fume event during cruise. After completing the appropriate QRH procedure and conferring with Maintenance the flight continued to a safe landing at destination.

Narrative

While in cruise; both the First Officer (FO) and I smelled what appeared to be an electrical odor. I called back to the Flight Attedent's (FA) to ask if they had any unusual odor in the cabin. They said that they did with a very light haze in the cabin. The FO and I accomplished the QRC for SMOKE; FIRE or FUMES which then lead us to QRH Chapter 8 SMOKE; FIRE or FUMES Checklist. We accomplished steps 1-12. I read step 12 as we had extinguished the source through previous steps. The smell had dissipated as did the haze in the cabin; which in my opinion confirmed that the situation was contained. We then moved to item 13. At that point I contacted Dispatch and informed them of the entire event and discussed with them our options and their preference. I conferred with the FO and all FAs and apprised them that it was my intent to continue on to our destination; but if anyone did not feel comfortable with this decision; that we would divert into ZZZ. At that time we were about 30 minutes east of ZZZ. Dispatch had also said that based on the information that we gave them; and having spoken with Maintenance; asked if we were comfortable to continue to destination. I informed them that we would continue on and would divert to ZZZ if the fumes returned. As I sit and spend more time reading this QRH out of the Cockpit; I could see how maybe we should have have diverted as the smoke; fire or fumes were not 'obvious' although it was obvious through the absence of smell and haze the source was 'isolated and extinguished.'