HYDRA WATERFALL Hydroxyl Generator (2-Position)
UV Air Purifier with PCO and Negative Ion Generator

$479 Buy Buy
Free Shipping!

Removes Odors, Kills Bacteria, Reduces Mold and Airborne Pathogens.
For Occupied Spaces up to 500 Square Feet. Compact 2-Position Unit.

Product Overview:
A hydroxyl generator is an advanced air purifier that permanently removes odors and allergens by attacking bacteria, mold spores and airborne pathogens. Unlike air purifiers that simply trap particles, the Hydra Waterfall uses PhotoCatalytic Oxidation (PCO) technology to breakdown and destroy airborne contamination including viruses.¹ The Hydra Waterfall is a true hydroxyl generator, which means that it does not generate harmful ozone and is safe to use continuously in occupied areas.

The Waterfall's built-in negative ion generator reduces dust, pollen, mold spores, pet dander and other allergens. Particles including viruses and bacteria cannot remain airborne after exposure to negative ions. The newest commercial air cleaning systems use negative ions to protect large indoor venues from airborne pathogens. Negative ions occur naturally near waterfalls and along ocean shores, boosting feelings of well-being and mental clarity. Studies have shown effectiveness treating Seasonal Affective Disorder (SAD).

True hydroxyl technology is safe for deodorizing and disinfecting the air in college dorm rooms, apartments, offices, daycare centers, gyms, fitness centers, locker rooms, hotels and motels, vehicles , RVs, clinics, nursing homes, funeral homes and many other areas without affecting daily routines. Other types of hydroxyl generators are designed for unoccupied or well-ventilated areas because they generate ozone.

The Waterfall operates on USB power for use anywhere. The unit includes a replaceable filter, true 275nm germicidal LEDs, light-activated catalyst and a quiet but powerful centrifugal blower fan. The discharge end has a stainless steel louvered cover to block harmful UVC germicidal light. Inside the device, the UV wavelength excites nano-sized particles of Titanium Dioxide that generate hydroxyls. The unit's germicidal light also sterilizes air inside the unit. The Waterfall can set horizontal or vertical so that it can fit in as little as a 4-inch square space.

PCO hydroxyl generation, originally developed by the National Aeronautics and Space Administration (NASA) to purify air onboard a space station, is ozone-free and safe to use indoors for continuous operation. Photocatalytic Oxidation is FDA-approved for use in Class II medical devices such as air purifiers, N95 respirators and infusion pumps.

BoiE Hydra Hydroxyl GeneratorsHealth Benefits from Hydroxyls Include:

Health Benefits from Negative Ions Include:

About Hydroxyl Technology:
Hydroxyls are omnipresent in nature, forming when UV light from the sun splits apart water molecules in the air. The resulting hydroxyl radicals instantly oxidize thousands of outdoor pollutants. Hydroxyls are nature's primary method of cleaning contaminants from the atmosphere using only sunlight and water vapor. Hydroxyls also kill germs in outdoor air, making it harder for viruses to survive and spread outdoors. The Waterfall uses UV light and a catalyst to mimic the reactions that generate hydroxyls, to cleanse indoor air.

Inside the Waterfall's reaction chamber, inorganic and biological contaminates are destroyed on contact with the catalyst surface, including the most resistant strains of bacteria that can survive long periods of exposure to both UV light and household cleaners. In addition, hydroxyls break down odors trapped in the air from mold, formaldehyde, smoke, sewer gas and many other contaminants, reducing them down to carbon dioxide and water. The unit's germicidal light also sterilizes its chamber to keep it germ-free.

The Waterfall utilizes the latest PCO technology including shielded ultraviolet germicidal LEDs rated for 10,000-hours, a dual ball bearing, long-life centrifugal fan and BoiE's unique 360-Surround permanent nano-anatase TiO2 reactor grid to produce the highest levels of hydroxyls possible without restricting airflow. Other types of hydroxyl generators are designed for unoccupied or well-ventilated areas because they generate ozone.

Bottom Line:
The Hydra Waterfall is great for cleaning small occupied spaces by running the unit continuously. Hydroxyl generators won't damage plants or sensitive materials. The Hydra Waterfall's compact form factor allows it fit on small desktops, tables and shelves. It reduces the spread of mold spores and other allegens while providing the benefits of negative ions.

Like all BoiE products, the Hydra Waterfall was designed by indoor air professionals to outlasts and outperform the rest.

Hydroxyl Remediator Certification (Limited Time Offer)
Your purchase includes BoiE's exclusive 32-hour, comprehensive Ozone and Hydroxyl Remediator certification course. Learn how to utilize hydroxyl generation and properly apply ozone for odor removal, disinfection and restoration applications. Learn the protocols, how to identify and assess the source of odors, corrective measures and preparing treatment reports. Provides a path for starting a new business or expanding your current services. Course includes a helpful Online DVD with demonstration videos. You can enroll and simply use the course material as a reference if you don't need the certification.



Type of Use:

Neutralize airborne contaminants, odor reduction for smoke, mold, pets and VOCs

Case Material:

Rugged polymer with stainless steel




Aluminum mesh, carbon


2-position, horizontal or stand upright

Max Coverage:

500 sq ft (with 10' ceilings) per unit

Centrifugal Fan:

33 cubic feet per minute (CFM)

Electrical Rating:

5V 2.1A USB

Generation Method:

PhotoCatalytic Oxidation (PCO)


275-nm UV-C LEDs (germicidal - no ozone) rated for 25,000-hours

PCO Reactor:

BoiE 360-surround Reactor


Permanent nano-anatase TiO2 (replaceable)
30%-85%+ Relative Humidity (RH)

Power Connection:

10 ft USB Cord with wall adapter


9 x 4 x 4 inches


2 lbs


1. Foster, Howard & Ditta, Iram & Varghese, Sajnu & Steele, Alex. (2011). Photocatalytic disinfection using titanium dioxide: Spectrum and mechanism of antimicrobial activity. Table 7. Viruses shown to be killed by photocatalytic disinfection: SARS coronavirus. Applied Microbiology and Biotechnology. 90. 1847-68. 10.1007/s00253-011-3213-7.

Office Hours 8am - 8pm CST Mon.-Fri. CST, 9am - 6pm Sat. Call 800-432-4418

payments bbbpayments

© BOI Environmental (BoiE). All rights reserved.