Ozone Exposure on Restoration Jobs from False Hydroxyl Generators: What Every Restoration Contractor Should Know

Restoration professionals regularly work in challenging environments that may contain smoke residues, mold contamination, volatile organic compounds (VOCs), sewage odors, and fire damage. Choosing the right air-cleaning equipment is critical—not only for odor removal but also for worker safety and regulatory compliance.

One of the most important questions every restoration company should ask is:

Does my air-cleaning equipment generate ozone, and if so, is it appropriate for use while people are working in the area? Titan does not but other popular brand actully do produce ozone and call it hydroxyl.

What Is Ozone?

Ozone (O₃) is a gas made up of three oxygen atoms. It is a strong oxidizer that can react with odor molecules and certain contaminants.

Because of its oxidizing properties, ozone has been used for specialized restoration applications. However, ozone can also affect the respiratory system, which is why worker exposure is regulated.

Health Effects of Ozone Exposure

According to agencies such as the U.S. Environmental Protection Agency (EPA) and the Occupational Safety and Health Administration (OSHA), breathing elevated concentrations of ozone can:

• Irritate the eyes, nose, and throat

• Cause coughing

• Trigger chest tightness

• Reduce lung function

• Aggravate asthma

• Increase breathing difficulty during physical work

• Irritate damaged or sensitive lung tissue

Restoration technicians are already performing physically demanding work. Increased breathing rates during demolition, cleaning, and material removal may increase inhaled exposure if ozone is present in the work environment.

OSHA Requirements

OSHA has established a permissible exposure limit (PEL) for ozone in workplace air. Employers are responsible for maintaining worker exposures below applicable occupational exposure limits and providing a workplace free from recognized hazards.

If equipment intentionally generates ozone, employers should evaluate whether its use is appropriate while employees are occupying the work area and follow the manufacturer's instructions and applicable safety regulations.

California Regulations

California regulates electronic indoor air cleaners through the California Air Resources Board (CARB).

CARB limits ozone emissions from certified indoor air cleaners and has adopted regulations intended to reduce consumer exposure to ozone from these products.

For contractors working in California, selecting equipment that complies with applicable CARB requirements can help support regulatory compliance.

Why Restoration Contractors Should Evaluate Their Equipment

Before operating any air-cleaning device, restoration companies should ask:

• Does this equipment intentionally generate ozone?

• What are the manufacturer's ozone emission specifications?

• Is the equipment intended for occupied or unoccupied spaces?

• Has the equipment been independently tested?

• What worker safety precautions are recommended?

Understanding these answers helps contractors select equipment that matches the intended application and protects employees.

A Hydroxyl-Based Alternative

Many restoration professionals choose hydroxyl-based air purification technologies because they are designed to generate hydroxyl radicals through photocatalytic oxidation rather than relying on intentionally generated high ozone concentrations.

Titan Hydroxyl Air Purifiers use:

• High-output UVA lamps

• Titanium dioxide (TiO₂) catalyst

• Ambient humidity

This combination generates hydroxyl radicals that help reduce odors and airborne contaminants while being designed for many occupied-space applications when used according to the manufacturer's instructions.

Protect Your Crew and Your Business

The restoration industry is built on protecting people and property. Selecting air-cleaning equipment should involve more than comparing price or airflow.

Contractors should evaluate:

• Worker safety

• Ozone emissions

• Regulatory compliance

• Independent testing

• Manufacturer guidance

• Application suitability

By understanding how different air-cleaning technologies work and following occupational safety requirements, restoration companies can make informed decisions that help protect both employees and customers.

When choosing equipment for occupied environments, always review the manufacturer's documentation, verify applicable certifications, and ensure the technology is appropriate for the specific restoration project.