DIY VCI Emitters and how to prevent tools from rusting out

How to make VCI Emitter at home to prevent tools from rusting out if you can not keep them in woodden toolboxes. The item in the corner is CAMPHOR block. If you can't find CAMPHOR you can use NAPTHA Balls or MOTH Balls, they need to be real and non-synthetic. The more air tight the box the better it is as it will turn from solid to gas format and it will nano-coat(sort of in molecular level) the tools. Other version is you can Use 90 to 95% Liquid Naptha combined with 0.5 to 1.5% mineral oil together. This was in one of the MSDS sheets i found earlier(which is now inaccessible). DO IT AT YOUR OWN RISK as fumes are harmful and i take no responsibility due to so many people lacking common sense!