How Does Photocatalytic Oxidation (PCO) Technology Work For Cultivation?
Photocatalytic oxidation (PCO) is NASA’s technology to purify the air on space shuttles. PCO uses ultraviolet light to break organic molecules into simpler compounds, producing hydroxyl radicals and superoxide ions. It’s well-known for indoor growing to purify the air without using chemicals.
The Benefits of Photocatalytic Oxidation (PCO) Technology
One of the main benefits of using a PCO purifier is that it does not produce harmful chemicals. Removing contaminants from the air is safe, making it an attractive option for those concerned about environmental safety.
Photocatalytic Oxidation (PCO) Biggest Drawbacks
Despite its advantages, PCO technology has some notable drawbacks. It does not provide surface treatment and relies on the air coming into the reaction chamber only. It may not reach surfaces when it comes to long distances.
Does Photocatalytic Oxidation (PCO) Produce Ozone?
Most PCO Air Purifiers do not produce ozone, which can be seen as a drawback in certain applications. Ozone at low levels can help sanitize surfaces and help eliminate odor effectively, especially in commercial cannabis grow rooms.
Surface treatments are a must in grow rooms to prevent cross-contamination.
Cross-contamination is a significant concern in grow rooms, where powdery mildew or aspergillus on a single plant can quickly spread. Here’s where PCO purification systems fail because they do not reach surfaces over long distances.
Powdery Mildew Outbreak in a Cannabis Flower Room
Imagine a commercial cannabis grow room that faces a powdery mildew outbreak. This contagious fungus can devastate a crop if left untreated. In this case, the growers had a Photocatalytic Oxidation system in place. While the air quality improved, the PCO system failed to treat the surfaces, and the mildew spread.
In a parallel scenario, another grow room with similar conditions faced the same challenge but utilized the AirROS system. AirROS purifiers work in two phases: sanitizing the air and the surfaces in the room.
Phase 1 – Primary Air Cleaning
In this phase, air-containing microorganisms enter the purifier’s internal chamber. Reactive Oxygen Species (ROS) sanitize the air and destroy all bacteria, molds, viruses, and other pathogens.
Phase 2 – Secondary Surface & Air Cleaning
Provides surface sanitation and continued air sanitation, utilizing gas-phased H2O2 and low concentration levels of O3 ozone. These combine to create Hydrogen Trioxide (H2O3), effectively sanitizing surfaces and air 24/7.
The AirROS system successfully prevented the spread of powdery mildew in the grow room, saving the rest of the entire crop. In contrast, the room relying on PCO technology suffered significant losses.
Air & Surface Sanitation Solution For Grow Rooms
AirROS industrial systems are designed to destroy mold and viruses and provide odor control in the air and surfaces in cannabis facilities. It offers a more complete and effective solution to mold prevention in grow rooms than photocatalytic oxidation (PCO) cleaners.
The technology can sanitize surfaces at long distances with a single purifier, providing odor control, long-distance surface treatment, and purifying the air simultaneously.
PCO vs. AirROS for Cannabis Grow Rooms
While PCO technology has its place in air purification, it must have the comprehensive approach required for growing rooms. From preventing cross-contamination to handling powdery mildew outbreaks, AirROS offers a superior alternative.
Suppose you operate a commercial cultivation facility and are looking for an air purification system for your grow room. In that case, we highly recommend choosing an AirROS commercial air and surface purification system.
Don’t let your hard work be in vain. Contact us today to learn more about our products and how we can help you keep your plants healthy and thriving. Your success is our priority, and we’re here to guide you every step of the way. Let AirROS redefine your grow room’s safety and quality. Contact one of our specialists today!
Recent Posts
- Stop Dry Room Mold Before It Starts
- How to Prevent Aspergillus & Mold in Your Cannabis Flower Room
- Does AirROS Prevent Powdery Mildew in Cannabis? A Spectral Imaging Case Study
- Cannabis Air Quality: Why Prevention Matters More Than Remediation
- Failing Total Yeast & Mold With No Visible Mold: Why It Happens and What to Fix
Categories
Archives
- July 2026
- May 2026
- March 2026
- February 2026
- January 2026
- August 2025
- June 2025
- May 2025
- April 2025
- March 2025
- February 2025
- January 2025
- December 2024
- November 2024
- October 2024
- September 2024
- August 2024
- July 2024
- June 2024
- May 2024
- April 2024
- March 2024
- February 2024
- January 2024
- September 2023
- August 2023
- July 2023
- June 2023
- March 2023
- February 2023
- January 2023
- December 2022
- August 2022
- July 2022
- June 2022
- May 2022
- March 2022
- January 2022
- December 2021
- November 2021
- October 2021
- September 2021
- August 2021
- July 2021
- June 2021
- May 2021
- April 2021



