The Pest Toolkit: UV + PCO Technology

The Future of Clean Rooms, Clean Plants & Clean Medicine

Powdery mildew (PM), thrips, mites, fungus gnats, airborne microbes, and contaminants have challenged cultivators for decades. Today, a new era of chemical-free Integrated Pest Management (IPM) is redefining how top-tier facilities protect yield and quality.

The combination of targeted UV light and NASA-developed PCO (Photocatalytic Oxidation) + Plasma air sanitation technology is now one of the most effective, science-backed solutions for both preventing and eliminating microbial and pest pressure.

And Mammoth has been leading this UV + PCO revolution since 2018.


What Are PCO & Plasma? (NASA-Inspired Technology)

PCO (Photocatalytic Oxidation) — NASA-Developed Air Cleaning

PCO uses UV light + a titanium dioxide catalyst (TiO₂) to create highly reactive oxidizing molecules that destroy organic contaminants at the molecular level.

PCO destroys:

  • Mold spores

  • PM spores

  • VOCs

  • Odors

  • Bacteria

  • Airborne pathogens

PCO is based on technology originally developed by NASA for long-duration space missions, where clean air is critical.


Plasma (Cold Plasma / Bipolar Ionization)

Plasma generates positive and negative ions that:

  • Bind to airborne microbes

  • Break down their membranes

  • Cause them to clump (making HEPA capture easier)

  • Reduce mold and bacterial load

Plasma + PCO together create a "capture AND destroy" effect for room-wide sanitation.


Quick Guide: UVA, UVB, UVC — What’s the Difference?

UV Type Nanometer Range Purpose in Cultivation
UVA 315–400 nm Plant expression, anthocyanins, terpenes
UVB 280–315 nm PM suppression, immune response, resin upregulation
UVC 100–280 nm Microbial kill (room resets only — dangerous to plants & humans if used improper)

Why UV + PCO Works: Backed by Peer-Reviewed Science

437 nm Near-UV (Violet Light)

“Violet–blue light around 405–440 nm significantly reduces bacterial and fungal loads via reactive oxygen species (ROS).”
Maclean et al., 2014

UVB vs. Powdery Mildew

“UV-B exposure decreases germination of powdery mildew and suppresses sporulation.”
Janisiewicz et al., 2016

Night Treatments = Maximum PM Kill

“At night, powdery mildew loses antioxidant protection, making it highly vulnerable to UV-B.”
Schuerger et al., 2003

UVC Kill Rate

“UVC inactivates >99.9% of fungal spores, bacteria, and viruses with extremely short exposures.”
Kowalski, UVGI Handbook, 2009

PCO + Plasma Findings

  • PCO effectively destroys airborne microbes under real airflow conditions.

  • Plasma provides high microbial kill through ion-based oxidation.

  • Combined, they reduce VOCs, odors, spores, and bioload.

This is not marketing. It’s pure science.


The Mammoth UV + PCO Solution Set

Your complete ecosystem for clean rooms, clean plants, and clean COAs.


1️⃣ Built-In 437 nm Near-UV (All Mammoth Fixtures)

  • Passive, all-day microbial pressure reduction

  • ROS-based fungal + bacterial suppression

  • Always on, no workflow change


2️⃣ Air & Surface Sanitizers (PCO + Plasma + HEPA + UVC)

The core of clean COAs and clean grow rooms.

6-Stage “Capture & Destroy” Technology

  1. Prefilter

  2. HEPA

  3. Carbon

  4. PCO (UV + TiO₂)

  5. Plasma

  6. UVC sterilization chamber

Performance:

  • 500 CFM → Up to 37+ ACH in small rooms

  • Ideal cannabis ACH: 8–12

  • Reduces spores, PM, bacteria, VOCs, odors, and airborne contaminants

Models include:

  • 60W Standard Unit – up to 500 sq ft

  • 55W Compact Unit – up to 400 sq ft

  • UV Wand + PCO – room + surface sanitation


3️⃣ Universal UVA/UVB Upgrade Kit

Fits any Mammoth fixture.
Ideal for:

  • PM suppression

  • Anthocyanin production

  • Terpene enhancement

  • Targeted seasonal spectrum tuning

Includes RJ connectivity (TrolMaster + LMA-14 compatible).


4️⃣ New UVC + UVB Wands

  • 44" wands

  • 20W per bar

  • Ceiling mount, table mount, handheld

  • Instant microbial kill

  • Perfect for spot treatment & walk-around sanitation


5️⃣ 160W UVC + UVB Tower ("Room Reset Machine")

  • Hospital-grade disinfection

  • Full room resets between cycles

  • Eliminates microbial load

  • Motion radar shutoff

A $2,000 industrial-class unit… for under $350.


When UV Works Best (Cornell + USDA Data)

Night = Maximum PM Kill

PM loses antioxidant protection at night.

Recommended Timing

  • 10–60 min before lights on

  • 10–30 min after lights off

Use Cases

  • UVB = With plants

  • UVC = Empty room resets only

Plants also thrive under 13/11, supported by Mammoth trials.


Benefits of UV + PCO for Growers

Strong PM suppression
UV damages PM DNA; PCO destroys spores completely.

Pest reduction
Thrips, mites, gnats, and microbial vectors suppressed.

Cleaner air → cleaner plants
Less airborne contamination = cleaner COAs.

Higher plant energy + better expression
Plants not fighting pathogens redirect energy to growth.

Chemical-free IPM
No residues. No flavor impact. No COA risk.
Just physics and biology.


Safety First: UV Is Powerful — Respect It

Our Safety Recommendations

  • Use UVC only for empty rooms

  • Always use radar shutoff

  • PPE required: face shield, gloves, long sleeves

  • Avoid exposing eyes or skin


Clean Rooms → Clean Plants → Clean Medicine

UV + PCO + Plasma are now the new standard in modern IPM.

For less than $600, you can protect an entire room.
Lower microbial counts = better growth, louder terps, higher quality, and clean COAs.


The Future of Clean Medicine Is Here.

Got Mammoth? 🌿🚀


2 comments


  • André Morin

    Hello,
    I’m looking for a technology provider that would be willing to develop and install a UVLED PCO solution for a printing company in Montreal. Our client needs to reduce its VOC emissions and we are seeking an energy efficient solution. VOC mainly come from solvent (Ethylene glycol monopropyl ether, N-propyl alcohol and N-propyl acetate). They have a 15,000 CFM exhaust system. I think we would need to develop a “reaction chamber” in which we would have many steel plates covered with TiO2 and UVLED, but I have no way of estimating the dimensions (and costs) of suche a system.
    Could you help with that?
    Thanks!


  • John Anderson

    Good afternoon what is the price and information on your
    UV-PCO?


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