How long does PŪRWorld photocatalyst treatment last after application?
Since photocatalyst TiO2 is only acting as semi-conductor catalyst, it is not consumed during the oxidation process, therefore, completing a long lasting oxidation cycle. PŪRWorld is now offering a three years product and services warranty. Q: Is PŪRWorld photocatalyst treatment safe? A: Yes , it will be no harm of direct touching the material or having direct contact with it after its drying time. The material is totally safe and the titanium dioxide used is FDA approved (refer to EPA certified toxicity lab report).