Before and after shots of solid native varnished door. From 17 ug/100 cm2 to a “undetectable reading” (<0.02). These solid doors are worth saving even tho they take a bit of work. It’s going to be painted now to future proof against future contamination. If you have varnish in your rentals it’s a good idea to get rid of it. Home Straight – Saving homes helping people!