Questions and answers


The most common equipment for sanitizing air and surfaces are Ozone Generators and UVC Emitters. Ozone is a gas and cannot be breathed in the concentrations necessary to carry out a germicidal action on the surfaces it reaches. UV C, in the concentrations necessary to carry out the germicidal action, cannot directly reach humans. Both these systems, when used for surface disinfection, must be used in the absence of people or by a single operator who operates them, equipped with the necessary protections.

Today, during a pandemic, it would be appropriate to sanitize both the surfaces and the air, the carrier of bacteria and viruses including the CDV.

If the surfaces can be sanitized once a day, the air sanitizers are always in operation and constantly sanitize the environment in which they are located, providing more constant and performing health protection.

The health-conscious customer therefore has two systems, one for sanitizing the air and one for sanitizing the surfaces (they are not an alternative to each other, but complementary ones).

The air purification systems do not emit UVC light outside the equipment, but only on the air that passes through them and can carry out their continuous germicidal action in the presence of people, during working or social hours. Surface sanitization systems cannot be switched on in the presence of people. The greatest risks of spreading viruses are not attributed to contact with surfaces but with the transmission by airborne droplets.

Why did ISO choose to produce UVC and non-ozone germicidal systems?

  1. Because we have historical experience with the lamps.
  2. Because the germicidal properties of UVC are recognized and used all over the world.
  3. Because UVC systems are used to sanitize both the surfaces and the air we breathe.
  4. Because ozone is dangerous for humans and being a gas it is more difficult to control.
  5. The American Lung Association says that "exposure to ozone causes a variety of negative health effects, even at levels below the current standard." (http://www.lung.org/our-initiatives/healthy-air/outdoor/air-pollution/ozone.html).
    And the Environmental Protection Agency (EPA) states: "For ozone to be effective as a germicide, it must be present in a much higher concentration than can be safely tolerated by humans and animals." (https: //www.epa.gov/indoor-air-quality-iaq/ozone-generators-are-sold-air-cleaners#generators-effective).
    The longer wavelength (253.7 nanometers) of UVC light, by contrast, provides highly effective disinfection of air and the surface without producing harmful ozone.
  6. Because the UVC is more eco-friendly.
  7. Clearer and easier to apply usage protocols.
  8. Since, in contrast to ozone, the UVC systems are suitable ALSO to air sanitization that represents the greatest risk of spreading the virus.

How long do UVC lamps last?

It depends on the type of lamp, on average The declared duration is 9000 (365 days h24) but at 8000 they lose their effectiveness by 20% and it is therefore advisable to replace them.

How much does it cost to replace the lamps?

The price depends on the lamps, the 25 Watt lamps installed on T6 and T12 have a retail price of € 30 each.

Do the lamps also emit Ozone?

No, the lamps installed on our systems have a Germicidal emission at 254nm and are Ozone Free.

What certificates do Steril Line products have?

The CE mark are manufactured in accordance with:

• DIRECTIVE 2014/35 / UE - Low voltage

• DIRECTIVE 2014/30 / UE - Electromagnetic compatibility

• DIRECTIVE 2011/65 / EU - RoHS

The harmonized standards used as a reference for compliance with the essential requirements are as follows:

For safety: CEI EN 60335-1 - Safety of electrical appliances for domestic and similar use. Part I.

For magnetic fields: CEI EN 62233 - measurement methods for electromagnetic fields of household electrical appliances and similar with reference to human exposure.

When should the HEPA filter be replaced?

Every 6 months (considering a use of 8 hours a day)

Why do the air disinfection systems have the HEPA filter?

  1. To sanitize the air also from fine dust. the HEPA filter is known internationally.
  2. Air purification equipment can also be without a filter or mount cheaper commercial filters (washable filters).

How much does the HEPA filter cost?

The retail price of the filter is € 90, in the T12 there are 2.

How do you choose the equipment to sanitize the air in a room?

Using the appropriate table:

Over 70 meters / square (single room) the T12 is recommended. In different environments it is advisable to propose more than one unit (one per environment).

How do you choose the equipment to sanitize the environment in a room?

The offer to sanitize an environment by installing UV corners is a bit more complex. To understand how many lamps to install it is advisable to carry out a small project and calculate that the germicidal dose arrives in the whole room without shaded areas. To do this it is necessary to have the floor plan of the room. Then:

  • The plan must be sent to Iso Italia
  • Iso Italia makes the plan with the number of UV corners to be installed and the relative price

How long does it take to sanitize an environment with UVC?

In 15 minutes

Which objects can be sterilized in Steril Cabinet?

All objects (tools, accessories, handpieces, telephones, keys etc. and clothes on hangers) affected by light. If a box is inserted inside, the contents of the box, not being in direct contact with the UVC, will not be sanitized.

Does Steril Cabinet also sanitize the air?

YES, when it is turned on to sanitize the objects it contains, a ventilation system is automatically activated which introduces an air flow into the Steril Cabinet and releases it sanitized.

Steril Cabinet switches off automatically whenever the door is opened, to prevent the UVC from touching people in front of the wardrobe (safety).

Do Steril Line products have a tax credit? (According to Italian Law)

Article 64 of Law Decree 17 March 2020 n. 18 introduced a tax credit for business operators, for the costs of sanitizing workplaces, incurred in 2020.

Circular no. 9 / E of 13/04/2020 has expanded the scope of application of the tax credit for the costs of sanitizing environments and work tools, also including the costs incurred, again in 2020, for the purchase of personal protective equipment, or for the purchase and installation of other safety devices designed to protect workers from accidental exposure to biological agents or to ensure interpersonal safety distance.

The measure introduced a tax credit in the amount of 50% of the expenditure incurred up to a maximum of € 20 thousand for each person, within the overall limit of € 50 million for the year 2020. As of May 4. We are awaiting the conversion into law of the aforementioned decree and the provisions and regulations applying the standard.

Are the products easy to assemble / install?

1. Cleaning Air T6, T12 and Steril Cabinet They can be installed by any electrician, they are delivered with an electric plug like any other appliance.

2. Steril room needs a small design by the company and a dedicated installation with authorized technicians.