Never touch the UVC bulb glass with bare fingers, as moisture from your skin will reduce the light intensity and lifespan of the bulb. Always use gloves or a piece of clean cloth when handling ultraviolet bulbs.
Change the UV bulb once a year to achieve the optimum performance from your Oase Vitronic or Bitron UV Clarifier.
Never look directly at a UV light. UV radiation is harmful to eyes and skin.