Just as a heads up...so not follow his recommendations for filters. They are inaccurate. You must use roscolene, not roscolux as he suggests. Also, if you attempt to message him on LinkedIn to ask for clarification on his filter recommendations he won't respond. 😂
The good news is that you just need to order the roscolene filters that the Dinshah Health Society recommends and you will be good to go. Sadly I wasted $150 following his bonk recommendations.
Other than that there is some great info in the book and I otherwise recommend it.