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Colorless quartz tube Ozone-free surface, the cross section is slightly purple. Ozone-free quartz tubes can be pre-220nm UV spectrum of basic cut-off, in the 253.7nm Department more than 70% UV transmittance of the wavelengths of ultraviolet light has a strong sterilization power to prevent dense UV radiation, does not produce ozone. No ozone quartz tube used in the production of various sterilization lamps.
