I did the research so you don’t have to! The Aqua Tru reverse osmosis system is our go to! DM us for a $100 off coupon. Make sure to purchase a alkalyzing filter to add minerals back into the water or purchase mineral drops. For a budget pick I’d go for the Santevia alkaline pitcher. It uses ion exchange to filter the water and then remineralizes the water and raises the ph. The Lifestraw water bottle is great for travel! It is 99.99% effective in filtering our parasites, bacteria, and viruses! LTKhome LTKfindsunder100 LTKfamily