To help put this into perspective, a hair from your head is about 60-75 microns in diameter. Particles under 35 microns are not visible to the naked eye. You can’t see most of the contaminants in the air. Pollen particles can range from 10 to 100 microns in size; dust from 0.5 to 5 microns; human dander, 10 microns or higher; etc. The majority of harmful particles are less than 5 microns in size. Source
Safe, clean drinking water is one of the most important health concerns for families. Even in the United States, it is possible to get municipal drinking water that still has contaminants and the current direction of the EPA isn't helping and even though the water may technically meet the minimum safety requirements of the federal government, many contaminants are never tested for. At BestFilters.com, customers will find the water filters that they need to ensure they have safe and clean water. Drinking water can be contaminated from a number of sources and with our water infrastructure problems, the water that leaves the water treatment facility may not be the same water at your tap. Ask the folks in Flint MI. Chemical pesticides and other ground water pollutants can seep into the municipal water supply and find their way into the homes of residents. Over time, this can lead to serious health problems and lower the quality of life. The water filters at BestFilters.com keep most of these contaminants away from homeowners.