Does RO water purifier remove pathogens completely

There are four main types of filters used in water purifiers: carbon, ceramic, reverse osmosis, and ultraviolet light.

Carbon: Carbon water purifiersuse activated or block carbon to remove impurities through chemical absorption. Carbon filters can usually filter out particles between 0.5 and 50 microns in size. These are the most common filters found in water purifiers. Carbon water purifiers are usually freestanding units, such as pitchers or countertop models, although there are some options that attach directly to the faucet.

A carbon water purifier can improve the taste and odor of your tap water by removing chemical contaminants including chlorine, radon, pesticides, herbicides, benzene, trihalomethane compounds, and other synthetic chemicals. These filters are not as effective in removing heavy metals and inorganic contaminants, such as arsenic, mercury, chromium, cadmium, minerals, and salts.

Ceramic: The porous nature of a ceramic filter removes larger particles, such as dirt, debris, and bacteria, as gravity pulls the water through the filter. Ceramic filters are not as effective at removing chemical contaminants as carbon filters, so they may be paired with other types of filters to completely purify the water. A ceramic water purifier is usually a freestanding unit that sits on a countertop or table.

Reverse osmosis: Reverse osmosis water purifiers are able to filter larger particles and inorganic chemicals like heavy metals, salts, and nitrates from your tap water. These filters are directly connected to the plumbing beneath the sink, so the water is filtered as soon as it emerges from the faucet. Some reverse osmosis water purifiers can store a small amount of purified water for later or emergency use. There is also a line that sends any tainted water straight to the drain.

Ultraviolet light

Some water purifiers use ultraviolet (UV) light to filter contaminants out of tap water. These filters can remove bacteria, viruses, and other illness-causing microorganisms and improve the taste of the water. However, UV filters don’t remove heavy metals, volatile organic compounds, minerals, salts, and other contaminants that carbon and reverse osmosis purifiers can. To be most effective, UV water purifiers are typically used in conjunction with another type of filter. A UV water purifier is attached directly to your home’s plumbing and may require professional installation.