Germicidal UV Air Sterilization & Odor Control

Germicidal lamps can be installed in any new or existing HVAC system (heating ventilation and air conditioning). UVC light, with most of the light energy focused at 254nm, is the most effective germicidal wavelength in the entire UV light spectrum. UVC light literally attacks DNA-based airborne pollutants and mold spores by breaking DNA molecular bonds, rendering them unable to reproduce.

Placed right above the air conditioning cooling A-coil or directly through it, the germicidal lamp offers maximum coil cleaning of mold and bio-films at the same time it disinfects the upstream air flow.

Benefits of Using UV light in HVAC Systems:

• Lowers energy costs by improving HVAC system heat transfer and increasing net cooling capacity. Reduces Maintenance: Continuously cleans coils, drain pans plenums and ducts.
• Improves indoor air quality as it prevents the spread of irritating airborne microorganisms and protects against infectious diseases.

Germicidal UVC Technology in Hospitals
Light Sources and LightTech’s germicidal UVC lamps for air purification systems reduce pathogens in the air supply. Hospitals have always presented a risk of infection to susceptible individuals because air-borne bacteria and viruses can remain active long enough to spread throughout the entire building via the HVAC system.

Hospitals can also benefit by using a direct sterilization approach for critical areas, such as surgical suites and procedure rooms. High-intensity UVC lamps can be switched on to quickly kill pathogens in the air and on surfaces.

Germicidal UVC technology using ozone-producing lamps is an efficient and cost-effective method to prevent odor issues and to meet strict official regulations.

Removing odorous VOC byproducts is important in many industries, especially when operations create nuisance odors for nearby residences and businesses and noxious fumes.

Our germicidal lamps operate at different wavelengths, including 185nm, which is the length of UV radiation that produces ozone. Ozone safely reacts with the odor-causing agent (VOC’s), such as ammonia, sulfides, and mercaptans, breaking it into less complex molecules through a process called oxidation.

Ambient air is directed through the system’s UV chamber. The ultraviolet light acts as a catalyst, breaking down the ambient oxygen and water vapor molecules into the short-lived oxygen and hydroxyl free radicals. The oxygen and hydroxyl are used up in the process of oxidizing more complex molecules. The end result is an effective and immediate gas breakdown, with very little byproduct.

Our standard and custom ozone-producing germicidal lamps include low pressure mercury lamps and low pressure amalgam lamps.

Low pressure mercury lamp solutions include:

• Standard Quartz Germicidal Lamps - GPH Types
• High Output Quartz Germicidal Lamp - Gxx/HO Types

Low pressure amalgam lamp solutions include:

• Spot Amalgam Lamps - GPHHA Types
• Proprietary Pellet Amalgam Lamps – GPHHA Types

Odor elimination is dependent on the type and degree of the odor-causing contaminants and the ambient air temperature and humidity. We offer custom and proprietary solutions to meet the requirements of our clients.

Germicidal UVC Odor Control in Waster Water Plants
Germicidal UVC systems have proven to be a cost-effective solution to eliminating odors from sewage lift stations and treatment plants as well as reducing in-plant corrosion from hydrogen sulfide. They are easy to integrate and require only a small footprint for operation.

In addition to having a strong odor, moderate and high exposure to hydrogen sulfide can have ill effects on health.

The system does not require any ongoing chemical costs or disposal of contaminated odor adsorption media.