Germicidal Lamps

A.D.P. Idrosteril®’s germicidal lamps eliminate bacteria, molds and microorganisms in air and water.

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Talk to A.D.P. to use ultraviolet technology in your area of reference.

Microorganisms are the simplest form of life.

Their minuscule size, their way of multiplying, the activity and flexibility of their metabolism distinguish them from other living beings of the animal and plant kingdom.

Microorganisms are the simplest form of life. Their minuscule size, their way of multiplying, the activity and flexibility of their metabolism distinguish them from other living beings of the animal and plant kingdom. Microorganisms include bacteria, protozoa, molds, ferments and viruses. The size of most bacteria is between 0,2 and 1,5 μm, while some species may reach 30 μm. The diameter of protozoa and ferments has dimensions around 10 μm while molds have variable dimensions. Viruses smaller than bacteria are particles without their own cell, they live and reproduce nested in the cells of other living beings. Death of microorganisms occurs with the loss of the ability to grow and multiply; in terms of experimental practice, when they lose the ability to divide in multiple cells.

Ultraviolet is the name given to the electromagnetic wavelength radiation between 100 and 400 nm, placed between the visible spectrum and X radiations.

Ultraviolet rays are invisible and are commonly classified according to three conventional bands:
  • UV-A radiation (long-wave) from 315 to 400 nm
  • UV-B radiation (medium-wave) from 280 to 315 nm
  • UV-C radiation (short-wave) from 100 up to 280 nm(one nanometer corresponds to one millionth of a millimeter)
  • UV-C group radiations have a strong germicidal effect and the highest efficiency at a 255 nm wavelength. In addition, UV-A and UV-C groups of radiation may cause erythema (reddening of the skin) and conjunctivitis (inflammations of the eyes) in cases of high exposure without following the necessary skin and eyes protection precautions.

Very short wavelength radiations, lower than 220 nm, cause ozone formation. Our germicidal lamps, CE certified by the manufacturer and tested by Universities of Milan and Piacenza, are low pressure and are made of quartz glass, a unique material perfectly permeable to ultraviolet rays – technical specifications requested by us for food and beverage applications. Our lamps are designed to contain ozone formations below normal values found in the atmosphere. The fundamental radiation generated by our lamps is represented by the spectral line of 254 nm, corresponding to the maximum germicidal effect. They are similar to normal fluorescent lamps intended for illumination but all accessories, especially the electronic ballasts, are designed to achieve the optimum pressure value corresponding to the 254 nm resonance line – which means the maximum germicidal action. Any material that overlaps between UV-C light and the microbe, with the exception of quartz glass, may inhibit the germicidal effect. It is therefore necessary, in any installation of an ultraviolet rays device, to inspect the lamps and to clean them where needed. The germicidal emission slowly decreases during the lamp’s life (its special glass gradually absorbs the rays which lose their effectiveness), therefore after reaching 5.000 operating hours, when their decay begins, the lamps should be replaced with new ones. UV-C rays are invisible; their visible radiation (violet light) does not allow to draw any conclusion on the germicidal life: the emission can be determined only by using special measuring tools. Our UV-C germicidal lamps are available in different shapes, wattages and sizes for horizontal, vertical or submerged use. Ozone-emitting lamps are available to eliminate odors in indoor environments in a linear or curved shape, made of quartz glass permeable to the 185 nm wavelength.

Our range consists in:
  • UV-C lamps in pure quartz
  • UV-C lamps in special glass
  • UV-C ozone lamps

The radiation power, emitted in 2537 Ångström, varies according to the pressure of mercury value in the tube. It is important to use electronic ballasts designed for our ultraviolet lamps. Using non-original materials can reduce the performance and the UV-C lamp lifetime but, above all, it affects its efficacy. With all this, we must take into account that the human eye DOES NOT have the ability to perceive UV-C rays in the form of light. Therefore, after reaching 5.000 operating hours, even if apparently working, the lamps should be replaced in order not to lose their germicidal efficacy.

A.D.P. Idrosteril® will reply from the following email address info@adpidrosteril.it regarding lamp orders or inquiries, with the technical data sheet of the lamps concerned (length, diameter, connections, watts, type of ballast used) that you will attach to the email.

With The Appearence of covid-19, the ministry of health has issued an alert on UV-C lamp purchased under free market condition.

Very short wavelength radiations, lower than 220 nm, cause ozone formation. Our germicidal lamps, CE certified by the manufacturer and tested by Universities of Milan and Piacenza, are low pressure and are made of quartz glass, a unique material perfectly permeable to ultraviolet rays – technical specifications requested by us for food and beverage applications. Our lamps are designed to contain ozone formations below normal values found in the atmosphere. The fundamental radiation generated by our lamps is represented by the spectral line of 254 nm, corresponding to the maximum germicidal effect. They are similar to normal fluorescent lamps intended for illumination but all accessories, especially the electronic ballasts, are designed to achieve the optimum pressure value corresponding to the 254 nm resonance line – which means the maximum germicidal action. Any material that overlaps between UV-C light and the microbe, with the exception of quartz glass, may inhibit the germicidal effect. It is therefore necessary, in any installation of an ultraviolet rays device, to inspect the lamps and to clean them where needed. The germicidal emission slowly decreases during the lamp’s life (its special glass gradually absorbs the rays which lose their effectiveness), therefore after reaching 5.000 operating hours, when their decay begins, the lamps should be replaced with new ones. UV-C rays are invisible; their visible radiation (violet light) does not allow to draw any conclusion on the germicidal life: the emission can be determined only by using special measuring tools. Our UV-C germicidal lamps are available in different shapes, wattages and sizes for horizontal, vertical or submerged use. Ozone-emitting lamps are available to eliminate odors in indoor environments in a linear or curved shape, made of quartz glass permeable to the 185 nm wavelength.