Water purifiers, also known as water purification systems or water quality purifiers, are water treatment devices that perform deep filtration and purification according to the requirements for water usage. The term "water purifier" commonly refers to small-scale purification systems used for household purposes. The core technology lies in the filter core's membrane, primarily sourced from ultrafiltration membranes, RO reverse osmosis membranes, and nanofiltration membranes.

Category Introduction

Water Purifiers: Water purifiers can be divided into two main categories based on pipeline design grades: Gradually Tightening Water Purifiers and Self-Cleaning Water Purifiers. Traditional water purifiers are Gradually Tightening types, with an internal pipeline design where the filter cores are loose at the front and tight at the back. They typically consist of a PP meltblown filter core, granular activated carbon, compressed activated carbon, RO reverse osmosis membrane or ultrafiltration membrane, and post-filter activated carbon, usually arranged in a 5-stage sequence. The retained particles accumulate inside the filter cores and require regular manual cleaning to ensure proper machine operation. The other category is the more advanced Self-Cleaning Water Purifier, which has two channels inside and an additional washing water passage. The normal domestic water used for washing passes through this passage, cleaning the internal filter cores, especially the membrane filter cores, by flushing. This action is achieved by using the water that naturally flows out at the head and tail ends when the washing water tap is opened and closed. This structural design is rational, eliminating the need for manual cleaning, preventing secondary contamination of the system, and also reducing energy consumption costs.

But consumers are advised to identify that self-cleaning water purifiers are different from the automatic drain water purifiers, computerized automatic flush water purifiers, and automatic backflush water purifiers commonly seen on the market. The former features whole-machine self-cleaning, meaning all filter cores within the machine have a certain self-cleaning function; whereas the latter only flushes one filter core rather than the entire machine. To put it simply, a self-cleaning water purifier is akin to having a garbage disposal installed in the pipeline, with waste being cleaned out at any time and not left inside the machine. In contrast, traditional non-self-cleaning water purifiers are like having multiple trash bins placed in a room, with waste temporarily stored inside the machine. Therefore, regular draining, cleaning, and frequent filter replacement are necessary.