Toroidal-shaped treatment device for disinfecting a fluid such as air or water

A method for disinfecting a water flow, the method comprising:

• (a) flowing water through a treatment device, the treatment device being toroidal-shaped with an outer surface, an inner concave parabolic surface, and an inner part, wherein:
• the device is provided with apertures extending from the outer to the inner concave parabolic surface of the toroidal-shaped device;
• one or more UV LED(s) provided in the apertures thereby enabling emitted light to be transmitted through the apertures into the interior part of the device for disinfecting said fluid;
• and
• a power source for powering the UV LED(s),
• wherein the inner surface is made from a light reflecting material, and the apertures are sealed at ends extending into the interior part of the device by a UV-transparent material.

A method for curing coatings and paints on the surface of objects, the method comprising:

• (a) flowing the objects through a treatment device, the treatment device being toroidal-shaped with an outer surface, an inner concave parabolic surface, and an inner part, wherein:
• the device is provided with apertures extending from the outer to the inner concave parabolic surface of the toroidal-shaped device;
• one or more UV LED(s) provided in the apertures thereby enabling emitted light to be transmitted through the apertures into the interior part of the device for disinfecting said fluid;
• and
• a power source for powering the UV LED(s),
• wherein the inner surface is made from a light reflecting material, and the apertures are sealed at ends extending into the interior part of the device by a UV-transparent material.