Ozone Emission Test

What is Ozone?

Ozone (O₃) is a blue molecule consisting of three oxygen atoms and is gaseous at room temperature. Ozone naturally occurs in the upper layers of the atmosphere, protecting Earth from harmful UV rays. However, when controlled and appropriately dosed, it is also used as a powerful oxidizing agent for disinfection and sterilization.

Fundamental Properties of Ozone:

• Molecular Formula: O₃
• Rapidly destroys microorganisms due to its strong oxidizing effect.
• Naturally decomposes into oxygen.
• Colorless to bluish, with a characteristic pungent odor.
• Toxic if inhaled; therefore, it must be used in a controlled environment.

Use of Ozone in Biocidal Products

Ozone is utilized as an 'active substance' in biocidal products. It yields particularly effective results in the disinfection of air, water, and surfaces.

According to the Biocidal Products Regulation, ozone gas can be employed in product types such as PT 2 (surfaces), PT 4 (food and feed area), PT 5 (drinking water), as well as in air purification systems.

Areas of Application:

• Air disinfection in enclosed spaces (hospitals, public transport, hotel rooms)
• Surface sterilization in food processing areas
• Drinking water treatment
• Disinfection of swimming pools and spas
• Fungus and mold control in agriculture

Advantages

• Leaves no residues (converts to oxygen)
• Broad microbial spectrum (bacteria, viruses, fungi, spores)
• No chemical transport required (on-site production)
• Rapid duration of action

Purpose of Ozone Emission Testing

Although ozone is an effective disinfectant, exposure exceeding specific human health limits can be toxic. Therefore, conducting emission tests on products containing ozone is imperative for both safety and regulatory compliance.

Fundamental Objectives of Testing:

1. Analysis of Human Health Impacts:
   • The effects on workers or users in ozone-containing environments are assessed.
   • Measurements are taken to determine whether inhaled ozone exceeds OSHA and EU exposure limits.
2. Regulatory Compliance:
   • Compliance with limit values such as EN 60335-2-65, OSHA (0.1 ppm, 8-hour TWA), NIOSH, and ACGIH is verified.
   • The test certificate serves as proof for product authorization.
3. Product Safety and Performance:
   • The amount of ozone released must both ensure effective disinfection and be safe.
   • Excessive ozone production can lead to product recalls or mandatory labeling requirements.