Far infrared named infrared ray, it is an electromagnetic wave whosewavelength is between visible light and microwave. Because it is located inoutside the red edge of the parameter, so we called it infrared ray .we can notsee it in our vision. According to the wavelength ,we divide the infrared rayinto three parts ,the close infrared ray( the wavelength is 0.76-1.4ｕm ),the medium infrared ray (the wavelengthis 1.4-3.0ｕm)and thefar infrared ray(the wavelength is 3.0-1000ｕm).so the far infrared refers to theelectromagnetic wave whose wavelength is 3.0-1000ｕm. It hasthe functions of reflection and refraction as same as the ultraviolet ray, visiblelight and microwave. But it is best to heat at the wave band of far infrared.

Far infrared named infrared ray, it is an electromagnetic wave whosewavelength is between visible light and microwave. Because it is located inoutside the red edge of the parameter, so we called it infrared ray .we can notsee it in our vision. According to the wavelength ,we divide the infrared rayinto three parts ,the close infrared ray( the wavelength is 0.76-1.4ｕm ),the medium infrared ray (the wavelengthis 1.4-3.0ｕm)and thefar infrared ray(the wavelength is 3.0-1000ｕm).so the far infrared refers to theelectromagnetic wave whose wavelength is 3.0-1000ｕm. It hasthe functions of reflection and refraction as same as the ultraviolet ray, visiblelight and microwave. But it is best to heat at the wave band of far infrared.Far infrared named infrared ray, it is an electromagnetic wave whosewavelength is between visible light and microwave. Because it is located inoutside the red edge of the parameter, so we called it infrared ray .we can notsee it in our vision. According to the wavelength ,we divide the infrared rayinto three parts ,the close infrared ray( the wavelength is 0.76-1.4ｕm ),the medium infrared ray (the wavelengthis 1.4-3.0ｕm)and thefar infrared ray(the wavelength is 3.0-1000ｕm).so the far infrared refers to theelectromagnetic wave whose wavelength is 3.0-1000ｕm. It hasthe functions of reflection and refraction as same as the ultraviolet ray, visiblelight and microwave. But it is best to heat at the wave band of far infrared.Far infrared named infrared ray, it is an electromagnetic wave whosewavelength is between visible light and microwave. Because it is located inoutside the red edge of the parameter, so we called it infrared ray .we can notsee it in our vision. According to the wavelength ,we divide the infrared rayinto three parts ,the close infrared ray( the wavelength is 0.76-1.4ｕm ),the medium infrared ray (the wavelengthis 1.4-3.0ｕm)and thefar infrared ray(the wavelength is 3.0-1000ｕm).so the far infrared refers to theelectromagnetic wave whose wavelength is 3.0-1000ｕm. It hasthe functions of reflection and refraction as same as the ultraviolet ray, visiblelight and microwave. But it is best to heat at the wave band of far infrared.Far infrared named infrared ray, it is an electromagnetic wave whosewavelength is between visible light and microwave. Because it is located inoutside the red edge of the parameter, so we called it infrared ray .we can notsee it in our vision. According to the wavelength ,we divide the infrared rayinto three parts ,the close infrared ray( the wavelength is 0.76-1.4ｕm ),the medium infrared ray (the wavelengthis 1.4-3.0ｕm)and thefar infrared ray(the wavelength is 3.0-1000ｕm).so the far infrared refers to theelectromagnetic wave whose wavelength is 3.0-1000ｕm. It hasthe functions of reflection and refraction as same as the ultraviolet ray, visiblelight and microwave. But it is best to heat at the wave band of far infrared.