I. Wavelength of Infrared Rays Produced by Low – voltage DC Far – infrared Electric Blankets
Low – voltage DC far – infrared electric blankets, often using carbon fiber and other materials as heating elements, typically emit far – infrared rays with wavelengths mainly concentrated in the range of 5 – 20 micrometers.
II. Benefits to Humans
A. Improving Blood Circulation
Far – infrared rays have strong penetrating power. They can raise the temperature in the deep parts of subcutaneous tissues, creating a warming effect. This effect can dilate micro – blood vessels and promote blood circulation. It is helpful for relieving cold hands and feet and improving local discomfort in the body caused by poor blood circulation. Especially for people with cold – related diseases, joint pain or those who are sensitive to cold, it can play a certain alleviating role.
B. Boosting Immunity
Far – infrared rays can activate the phagocytic functions of macrophages and reticulo – endothelial cells in the body, enhancing the activities of various immune cells. Consequently, they can improve cellular immunity and humoral immunity, which helps to enhance the body’s immune function and increase the body’s resistance to diseases.
C. Relieving Fatigue
The warming effect of far – infrared rays can relax human muscles, accelerate the body’s metabolism, and promote the excretion of fatigue substances such as lactic acid and other waste products. This, in turn, relieves the body’s fatigue, making people feel more relaxed and comfortable. For those who are under high – pressure and high – intensity work for a long time, using far – infrared electric blankets can achieve good relaxation effects.
D. Skin Care and Beauty
Far – infrared rays can promote the metabolism of the skin through resonance absorption when irradiating the human body. They can increase the supply of nutrients, accelerate the excretion of metabolites, making the skin smoother and more tender, which helps to reduce wrinkles and delay skin aging. At the same time, it can also open the sweat glands and sebaceous glands of the skin, helping to expel toxins, wastes and cosmetic residues in the body, maintaining the healthy state of the skin.
E. Regulating the Autonomic Nerve
Far – infrared rays can adjust the autonomic nerve to the best state, improving symptoms such as reduced immunity, headache, dizziness, insomnia, fatigue, and cold limbs caused by continuous tension of the autonomic nervous system.
III. Long – term Safety
A. General Safety
In general, if it is a low – voltage DC far – infrared electric blanket produced by a regular manufacturer and conforms to relevant safety standards, its safety during normal use is guaranteed. This type of electric blanket uses a low – voltage DC power supply. Compared with traditional AC electric blankets, there is no strong electromagnetic wave radiation and induced electricity problems, which greatly reduces the potential harm to the human body.
B. Potential Risks
1. Skin Dryness
During the heating process of the far – infrared electric blanket, the water evaporation of the human body will be accelerated. Long – term use may lead to dry skin, itching, and even cracking. Therefore, when using it, it is necessary to maintain an appropriate indoor humidity and drink more water to supplement water.
2. Allergic Reactions
Some people may be allergic to the materials of the electric blanket or substances produced during the heating process, resulting in skin redness, itching, rash and other allergic symptoms. If such a situation occurs, the use should be stopped immediately.
3. Improper Temperature Control
If it is used for a long time and the temperature is set too high, it may lead to high body temperature, causing physical discomfort, and may even cause damage to some organs and tissues of the human body. Therefore, when using it, the temperature should be set reasonably according to personal needs to avoid excessive temperature.
4. Electrical Safety Hazards
Although the electrical safety risk of low – voltage DC electric blankets is relatively low, if the electric blanket is damaged, aged or used improperly, there may still be safety hazards such as short – circuit and electric leakage. Therefore, it is necessary to regularly check the state of the electric blanket, avoid placing sharp objects or heavy objects on the electric blanket, and do not fold or damage the electric blanket.
