Hi, I've a huge concern. My in laws have offered us a climbing frame and slide for my 11 month old, my issue is that these objects have been in storage inside a shed for years. We cannot be certain there have been rats in the area and in the shed. (Shed was rarely accessed and could be a haven). As an anxious mum, the idea of allowing my baby to play on these objects frightens me. How can I get these so clean, they're new! Do I use they uric acid enzyme remover or is it too risky to use the objects regardless? The in laws are cleaning as hard as possible with anti bacterial stuff but now I'm concerned it may not be enough as I've heard it's not effective against rats. Thank you.