Coal-fired power is still the main way to generate electricity in Taiwan. Coupled with the blowing monsoon, factory exhaust emissions, or traditional worship methods such as burning gold paper, the concept of PM2.5 has become more and more environmentally friendly. Taiwan has received more attention. Although most people are alert to the quality of outdoor air, only a few people are still concerned about the "hidden air pollution" caused by indoor air. Have you really bought the right air purifier?
Heavy metals brought by pet dander, oil smoke, second-hand smoke, paint, dust mites, and formaldehyde and other decoration materials make the indoor air quality in small and relatively closed spaces worse than outdoor, or even worse. It causes "air pollution" that is 2 to 5 times more serious than outdoors.
However, when faced with a dazzling array of air purifiers, even if consumers do their homework before purchasing, they may still be misled by various exaggerated claims, buy products that do not meet their needs, or blindly pursue the "lifelong service". The high CP value of "no consumables or no need to replace the filter for 10 years" means that the air purifier cannot exert its maximum filtration efficiency and can only be reduced to a decoration or a placebo. To effectively improve the air quality at home through an air purifier, consumers should still focus on filter quality, as well as the two major air purifier indicators: CADR (clean air output) and CCM (cumulative purification capacity). In addition to the single filtration efficiency, we should also look at the CADR clean air output rate
Many consumers are familiar with the HEPA filter (High-Efficiency Particulate Air, high-efficiency filter), which usually emphasizes the familiar 99.97%, 99.99% This type of "single pass efficiency" refers to the proportion of dirty particles in the air that can be filtered out after one filtration. However, matching a HEPA filter does not necessarily equate to a good air purifier. Clearly indicating the CADR (clean air volume value) and the corresponding applicable square footage, coupled with good air circulation effects, are the purchasing indicators that are closer to the user needs. .
CADR (clean air volume value) refers to the amount of clean air that an air purifier can produce under a certain time and space. It is generally expressed as "how many cubic feet per minute (CFM) it produces" or "How many cubic meters per hour (CMH) are produced?" These two cleaning efficiency units are the most common (the latter value is 1.7 to 2 times larger than the former, so you should identify what unit it is declared in when purchasing). In other words, the larger the CADR value, the more clean air can be produced in the same time.
If you want an air purifier to achieve a high CADR value, in addition to a certain filtering efficiency of the filter itself, it also needs to have high air permeability and high air volume. and other characteristics. In addition, since the air purifier is a product that needs to be turned on for a long time, it is also important to have low pressure resistance to avoid burdening the body during operation.
3M has more than 200 electrostatic filtration technology patents around the world. Its electrostatic filters have always had excellent performance in breathability, air volume and low pressure resistance. Under the minimum recommended applicable square footage, the fastest It can exchange air 6 times per hour, which means it can circulate indoor air once every 10 minutes after startup. When turned on for a long time, it can achieve air purification effects that combine filtration and energy-saving performance. The CCM indicator shows whether a filter is "long-lived" and "multi-filtered" enough.
In addition to CADR, there are also indicators closely related to filters, including CCM. CCM (cumulative purification capacity) is an indicator related to the carrying capacity of filtered pollutants and the effective filter life. It is defined as the total weight of pollutants that the filter can filter when the filtration efficiency of the purifier is reduced to 50%. The unit is milligrams. While CADR emphasizes the clean air that can be output within a certain period of time, or the air circulation efficiency of the air purifier, CCM can reveal the dirt-carrying capacity and lifespan of the filter.
Take 3M's new long-lasting electrostatic filter, which not only retains the high breathability and low pressure resistance characteristics of electrostatic filters, but also makes the filter fibers more fine-grained through improvements in the manufacturing process. ; Because more filter fibers are woven into the same surface area, compared with the existing 3M filter, its pollutant carrying capacity and effective service life are upgraded by 2 times.
3M's long-lasting electrostatic filter can also significantly improve the effective life of the old filter, which is 3 to 6 months on average, to a maximum of 1.4 years. To meet the best interests of breathing, 3M long-lasting electrostatic filters will become a new star in the market
3M’s newly launched full range of Beijing series air purifiers adopt long-lasting electrostatic filters and use four major product advantages. We strive to meet the best interests of consumers when "breathing": CADR rapid purification long-lasting filter CCM high air circulation range larger allergy improvement is the most effective
Overall, I want to choose the one that is most suitable for my home For air purifiers, in addition to paying attention to the CP value of the air purifier itself and avoiding blindly pursuing a single filtration efficiency approaching 100%, one should not ignore the two factors of CADR (clean air output) and CCM (cumulative purification capacity). Big indicators.
In addition, consumers should also have reasonable expectations for the life of the filter, and avoid being overly superstitious about "zero consumables or no need to replace the filter for 10 years" in order to truly buy an air purifier that can effectively improve the air quality at home. machine. ?