I agree with Kelly's rational and legitimate skepticism...Why is the question of NFPA or UL certification being skirted?
But I approach the efficacy of this product from a dollars and cents perspective
What is the cost/value of open heart surgery if it will save you life?...Whatever the traffic will bear, of course.
What is the value of an item fabricated at a cost of 40 or 50 dollars (at most) if it will prevent your car from melting?...$225? Hummm! Is this what the traffic will bear?
Since there's no comforting certification of this questionable product, then Take a closer look at Mango's innovating solution...and your pocket book!!!