How Far Back Can A Saliva Swab Test Detect Marijuana?

Just a FYI:   I've stopped asking for "opinions" about saliva testing because it's fairly new and you get a wide variety of answers.   Instead, call or visit the web sites of the companies that sell the tests themselves.   That takes out the "opinion" factor and just gives facts.   From my research I have learned that 12-24 hrs is the max time but if you're a chronic user it may take longer.   To get your own peace of mind, contact a company.(there are several on the web)

Most sources ive seen say they detect use up to 24 hours ago, but some say they can be detected for up to 4 days. It depends on how much and how often you use, your weight, and how much water you drink and how much you sweat. Id be clean for 4 days just to be on the safe side.

Wow thats not true at all.... Thats might be true for a urine test nut for an oral fluid test .. The thc will be gone in a matter of 24-72 hours...

Ho far back will will swab detect marijuana?