What are the functions of the equipment, consumables and accessories of the water purifier?

Generally, activated carbon is a vulnerable part of household miniature water purification, which usually takes three months. The exchange resin has a short life of more than ten days. Some places don't need PP cotton, and some places need a short life span, usually 2 to 6 months. Reverse osmosis and ultrafiltration tubes are not fragile for more than a year. In most cases, the function of pp cotton is to reduce the water pressure and filter some coarse activated carbon. The function of adsorption ultrafiltration is similar to that of PP cotton, but it is not resistant to high pressure exchange resin. The traditional industrial application is more similar to reverse osmosis, but the maintenance is very frequent and the cost is higher than reverse osmosis.