How many people would recommend filtered water?

The percentage of people who would recommend filtered water can vary widely depending on various factors such as geographical location, water quality, personal preferences, and education level. However, a 2019 survey conducted by the National Science Foundation (NSF) in the United States found that:

- Around 60% of households use some form of water filtration or treatment system.

- Among those households, the majority (nearly 80%) indicated being "very satisfied" with the quality of their filtered water.

- The main reasons cited for using filtered water included improving taste and odor (65%), removing contaminants/chemicals (58%), and overall health concerns (38%).

It's important to note that these statistics are specific to the United States, and the preferences for filtered water may vary in other countries or regions based on the local water quality and infrastructure. Additionally, the level of recommendation can be influenced by marketing and advertising efforts of companies promoting filtered water systems, which should also be taken into account.