More air purifier manufacturers OEM / ODM OEM OEM Advisory: 13,480,217,932 Xu purifier manufacturers how to judge the quality of the product is good or bad? Household cleaner manufacturer. First look at the manufacturer's certificate and to offer a variety of products, such as test reports, such reports are authoritative certification center certificate issued by the authority of certain reports. Description of products have professional certification bodies. Second, carefully check whether the product defect from the product's appearance and workmanship, and finally to see the brand as well as information on the package. Products improve basic production quality assurance products. If you have time to look at the product and evaluate the customer experience online. Comprehensive Judgement. Indoor air purifier manufacturer. Air purifier filters can clean it? HEPA filters and other physical filtration filter can not be cleaned, only to be replaced periodically. Some other types of air purifiers filter can be cleaned. Air purifiers process of how to know the air quality is good or bad? Product work process indicator shows there will be a good work environment and poor quality. Red is the current general environment for the worst, yellow, and green is excellent. Ionizers manufacturers. Mass air cleaner and also an important indicator of the core, that is CADR value. Product performance is good or bad, mainly by clean air output ratio (CADR values) decision, clean air output ratio, the higher the purification efficiency purifier. For indoor air quality reaches a certain standard of cleanliness, there are two necessary hard targets. CADR higher the value, the higher the purifying respirator performance.