How to Filter Water in the Back Country

If I'm going to the back country, I take a stainless steel single wall water bottle and some iodine or another chemical purifier. And then I'll filter it through like a buff or a kafir or something to get the turbidity out and use that. Then if I'm going somewhere for work where there are virus risks ... you don't want to hang around near a water source for a long time in case it's dangerous. You're squeezing from the dirty water into the clean water. It's not good for you long term for your thyroid. The thing that I used off grid was I used a soil, just a regular soil, but water filter, they're like 30