A.O. Smith is a multinational company with a history of more than 140 years, headquartered in the United States, is currently one of the largest manufacturers of household and commercial hot water equipment in North America, the business scope also includes water purifiers, etc., in 2015, for the domestic air pollution situation began to set foot in air purifiers, although entered the field of air purification late, but A.O. Smith's many products have outstanding performance, and in 2017, they successfully won the Aplan Gold Award, which is known as the "Oscar of home appliances". And obtained the "Class A high-performance home appliances" certification issued by China Household Electrical Appliances Research Institute.
 
A.O. Smith's air purifiers are mainly in the high-end market, with product prices ranging from 3,000 to 20,000 yuan, and its air purifiers are equipped with MREV7 high-efficiency primary filtration as standard, specifically for PM10 large particle pollutants, and the level of HEPA filters is as high as MERV17 (that is, European standard H13 level), and the particulate matter purification capacity is among the best. In addition to formaldehyde, the key indicator, A.O. Smith will be activated carbon layer of the dosage clearly marked for consumer reference, according to different pricing models, its weight from 1.0KG to 5.2KG, according to its official data interpretation, 1KG of activated carbon can adsorb about 6500mg of formaldehyde, is the highest F4 level of the national standard 4 times 4 times.
 
"Visualization of formaldehyde removal effect" has always been one of the pain points of many consumers. A.O. Smith has developed a unique Linkage anti-interference patent technology for KJ440F-MA-B12 and other formaldehyde-removing enhanced products, which can effectively resist the interference of volatiles such as toilet water, perfume, alcohol, etc., with a built-in laboratory-grade formaldehyde sensor with a measurement accuracy of 0.01, with a digital display, users can know the concentration of indoor formaldehyde at any time, which is also the most distinctive feature of A.O. Smith compared with other brands. In addition, A.O. Smith also monitors the linkage between infrared sensors and laser sensors, and corrects data errors to each other, resulting in extremely accurate real-time digital display of PM2.5.
 
In terms of noise control, relying on its own production of silent motors, even equipped with high-density filters, A.O. Smith's air purifiers can control the operating noise below the national standard line, and most models of mid-range operating noise is less than 60dB (A), which is very friendly to noise-sensitive people, but it is inevitable that its high-end operation noise is larger, and the measured value is 69dB (A), which is close to the upper limit of the national standard.
 
As a traditional American company, A.O. Smith's product design language exudes a typical American rugged industrial style, and the overall workmanship is stable and tough, but this kind of "muscle shape" full of male charm is not very compatible with the popular modern minimalist decoration style, and consumer acceptance also shows a trend of polarization. O. Smith gradually realized this, and launched its latest flagship product, KJ1200F-B01, with a pure white color scheme and a more rounded edge design, which is more in line with the aesthetics of today's young consumers.
 
KJ1200F-B01 as A.O. Smith's latest flagship product, in addition to the appearance of the improvement, the core performance is naturally unambiguous, it is equipped with two sets of H13 level HEPA double-layer 2.6KG activated carbon, particulate matter CCM value exceeds the highest national standard 16 times, although compared with IQAir still has a lot of room to catch up, but the CCM value of formaldehyde has been comparable. Thanks to the configuration of dual fans, the CADR value of KJ1200F-B01 particulate matter is as high as 1200, and the purification rate is nearly double that of IQAir, which can be applied to larger spaces and is priced at nearly 20,000 yuan.
 
If you want to buy relatively cost-effective products, it is recommended that consumers can pay attention to KJ400F, KJ440F and its extended models, its CADR value is generally between 400-500, CCM value is also several times beyond the highest national standard P4, F4 level, like KJ440F-MA-B12 and other formaldehyde enhancement models also have a built-in laboratory-level formaldehyde sensor, which can accurately display indoor formaldehyde concentration, and the price of products at this level is between 3500-5000 yuan, It is more in line with the level of mass consumption.