Startup performance – Check carefully whether the fan cover and fan blades are obviously deformed. When turning the fan blades, it should be brisk and flexible, and should not always stop at the same position. The starting performance is an important quality indicator of the fan. During the inspection, when the rated voltage of the power supply…
Manufacturing active oxygen – Negative oxygen ions can effectively activate oxygen molecules in the air, making them more active and more easily absorbed by the human body, effectively preventing “air conditioning disease”. In addition, negative ions can enhance the moisture retention of the hair. Generally, the surface of the hair is in the shape of scattered fish scales,…
PM2.5 refers to particulate matter with an aerodynamic equivalent diameter of less than or equal to 2.5 microns, which are solid and liquid particles suspended in the air. With the diameter less than 1/20 of a human hair, PM2.5 is the main reason for the formation of haze weather, which the main source is the residues…
Electronic thermostat – As known as temperature control switch, temperature protector and temperature control equipment, the thermostat is an automatic control element, which will occurs the physical deformation inside the switch to generate a series of on or off instructions according to the temperature change of the working environment.The temperature is transmitted to the temperature controller…
Adjustable thermostat – As a temperature sensing element, the temperature control switch is a switch with a bimetallic strip. When the heater is working normally, the bimetal is in a free state and the contacts are in a closed state; When the temperature reaches the operating temperature of the heater, the bimetallic element is heated to produce internal…
The PTC heater is composed of PTC ceramic heating element and aluminum tube. Constant temperature heating PTC thermistor has constant temperature heating characteristics, which the principle is that after the PTC thermistor is powered on, the self-heating temperature will make the resistance value enter the transition zone, and the surface temperature of the PTC thermistor…
Tip-over protection switch -When the heater is upright, the button switch at the bottom is pressed down by the action of gravity to keep the conduction state, and the heater supplied by the power supply generates heat normally. When the heater is overturned, in order to prevent the heater from still heating normally and causing danger,…
The ingress protection rating system, drafted by the international electrotechnical commission, classifies electrical appliances because of their dust and moisture resistance. The IP protection level is composed of two numbers. The first number indicates the level of dust-proof and foreign object intrusion prevention of electrical appliances, and the second number indicates the airtightness of electrical appliances…
No drug resistance – Both ultraviolet rays and ozone can directly destroy the DNA, RNA, protein in bacteria and virus cells, causing the cells to die directly and unable to reproduce and replicate, and there is no drug resistance. The sterilization of other chemical agents will cause bacteria and viruses to develop drug resistance, thereby resulting in…