Some companies such as Flavor West like putting labels such as "Diacetyl-free" on their flavorings, but since their flavors are not only meant for ecigs and are sometimes used in candies and such, what they really mean is "safe for consumption" but not necessarily inhalation. In other words, the amount of Diacetyl contained in their flavorings are insignificant if you're eating it, which is why they mark it "Diacetyl-free." However, since the effects on the lungs from inhalation of Diacetyl in ecigs is still largely an uncharted territory, the potential detriments have yet to be discovered/quantified. In addition, although the quantities are seemingly miniscule enough to not trigger terror and paranoia in most folk, the overall safety of ecigs in conjunction with formaldehyde production, Diacetyl, Acetyl-propionyl, and Acetoin, has yet to be determined in any publicly understandable or known way. Whatever the case may be, I believe the logical conclusion is that nonetheless, electronic cigarettes are leagues safer than analogs, and these little-understood studies should not inhibit someone's desire to quit cigarettes in fear that they're moving on to a more dangerous alternative. That is simply not the case.
On another note, what's up, guys?! My name is Evan and I've been working here for a few months now. I have been vaping for 5 years and I am excited to be a part of this community.