Formaldehyde emissions

TruStile says their doors are CARB compliant.  Here are the CARB standards.  Interesting that the standard is 3 times more stringent for wood faced products with composite core (0.08 ppb) vs actual MDF product (0.21 ppb).  These are numbers like what you might expect from near-best-practices, and suggest the wood facing does indeed cut back formaldehyde emissions about three times, or the equivalent of 9 years of aging (if the 6 year half life estimate I've seen is correct).  You should get even better numbers with No-Added-Formaldehyde.  Possibly you would get better numbers with thicker wood surrounding the composite core, more than just thin veneer.

Unfortunately, I have no guarantee right now my door is an actual TruStile door to meet even the CARB MDF requirement.  It is only made to duplicate the TruStile design 4080.  That was all I ever asked the BMC salesman for ("a door like the TruStile 4080").  He never said it was a TruStile door, it didn't say that on any of the order paperwork, and it doesn't say that on the side label.  It might say that on a label on the side of the door slab, but I haven't unfastened the door (it is screwed together to jamb as delivered) to check.  It might be an actual TruStile door slab, it might be a fake (of which even TruStile admits they exist), or it might be a door made by a TruStile factory but for which the company doesn't want their name on it...such as if it was not made to Carb compliance.