I've used both the PEC-12 & the Edwal you provide links to, they both work fine. Just be sure to remove all grit that can scratch the film before applying pressure to chemically clean. Fingerprints that have remained on film a long time can etch the film permanently, might never come off. Fungus is there for good in my experience, never found anything to remove it. Some people seem to have more corrosive sweat than others. It's shame Kostiner doesn't make their anti-static brush anymore, that is my favorite. Never needed new Polonium cartridges every two years like the Staticmasters do. The Kinetronics brand that Adorama sells works pretty well and costs even less, doesn't need Polonium cartridges either. Anyway you do it, plan on spending time dust busting with a healing brush in Photoshop.