My neighbor bought 2 chairs identical to this one. Hers are white looks awesome from sidewalk until you get up,close and then it looks dirty. what cleaner should she buy? I'd like to buy but not if there is no solution to her problem

https://www.poly-lumber-furniture.com/blog/post/the-ultimate-guide-to-cleaning-polywood-furniture https://www.poly-lumber-furniture.com/berlin-gardens-heavy-duty-xtreme-clean.html https://www.poly-lumber-furniture.com/luxcraft-crestville-poly-brite-cleaning-kit.html