National standards for humidifiers
One is the amount of humidification. This is the most important parameter of the humidifier. Some companies, in order to cater to consumers’ desire for large humidification capacity, arbitrarily mark the humidification capacity, so the standard strictly stipulates that the humidification capacity should not be lower than the nominal value of the product’s rated humidification capacity.
The second is humidification efficiency. Refers to the ratio of the actual humidification capacity of the humidifier to the input power, which reflects how much humidification can be produced per unit power consumption, and is an important indicator of the performance of the humidifier. In order to guide consumers to purchase energy-saving and environmentally-friendly products and to promote the development of more efficient products by enterprises, the standard divides this indicator into four levels: A, B, C, and D.
The third is noise. Considering that the humidifier may be used in the bedroom, if the noise is too loud, it will have a certain impact on consumers, so the standard has strict limits on the noise index.
The fourth is the service life of the evaporator core (device). For direct evaporative humidifiers, the evaporating core (or device) is the component that has the greatest impact on performance. With the continuous use of humidifiers, the efficiency of the evaporating core (device) will continue to decrease, and the amount of humidification will also continue to decrease. The standard stipulates that when the humidification capacity of the humidifier is reduced to 50% of the initial humidification capacity, it is deemed that the evaporating core has failed. For the replaceable evaporating core (device), its service life should not be less than 1000 hours.
Fifth, many humidifiers have auxiliary functions such as softened water and humidity display. In order to prevent some products from clearly not having this function, or this function can not have the corresponding effect, misleading consumers through false propaganda, The standard also puts forward specific requirements for these auxiliary functions: for the water softener, the standard stipulates that the hardness of the water should not exceed 100mg/L after being softened by the water softener. Before the water softener fails, the total amount of softened water should not be less than 100L. For the humidity display, it is stipulated that the relative humidity is within the range of 30% to 70%, and the error of the humidity display should be within ±10%, so as to avoid too much error and misleading consumers. In addition, the standard also stipulates that because the water level will have a significant impact on the performance of some humidifiers, the humidifier should have a water level protection function to prevent consumers from making the humidifier low performance and low efficiency for a long time without knowing it. Working status.