Odor removal that runs while the building stays open
Three professional hydroxyl generators, compared on the specs that actually govern job performance. Slower than ozone. Works in rooms you can’t empty. That trade is the whole reason to own one.
Take the jobs ozone can’t
Hotel floors, occupied apartments, medical offices, businesses that can’t close. No evacuation, no sealing off, no waiting to re-enter.
People stay in the room
Designed for occupied spaces — the whole purpose of the category.
Zero ozone
UV-A photocatalytic oxidation in the 315–400 nm band. No ozone generated.
Airflow that matters
1,850 to 5,500 CFM. Air that never passes through the unit never gets treated.
Plug in, run 24/7
Standard 110V outlet, continuous duty rating, built to run for days.
Can you empty the room?
We make both ozone and hydroxyl equipment, so we’ll tell you straight which one fits the job.
Hydroxyl generator
Runs while the structure stays occupied and your crew keeps working.
- Treatment measured in days, not hours
- 3–5 days typical for moderate odor
- No re-entry wait
- Results vary and aren’t guaranteed
Ozone is usually faster
If the space can be emptied and sealed, ozone is usually faster and cheaper per job.
- Requires an unoccupied, sealed space
- Shorter treatment windows
- Lower cost per job
Pick your machine
Same catalyst, same technology, same zero-ozone output. Choose by airflow, ceiling height and floor area.
Hydroxyl Extreme
Single chamber on the 1,850 CFM industrial blower body. The value pick when you’re buying multiple units to stage across rooms.
- 3,000–4,000 sq ft rated
- Nano anatase TiO₂ catalyst
- 3-year warranty
- Hand-built in the USA
Hydroxymaxx
Same coverage band as the Extreme, on the 5,500 CFM vertical tornado blower. Buy it for ceiling height — vertical discharge reaches volume a horizontal machine leaves untouched.
- 3,000–4,000 sq ft rated
- Single hydroxyl chamber
- 50 lb, 35×22×25 in
- Vertical tornado discharge
Hydroxymaxx 2x
Same blower and chassis as the Hydroxymaxx with a second hydroxyl chamber — double the radical production per pass, double the rated coverage.
- 6,000–7,500 sq ft rated
- Dual independent chambers
- 50 lb, 35×22×25 in
- Vertical tornado discharge
See the units in action
Indoor cultivation facilities and close-ups of the hardware. Tap any tile to open it.
Footage shows Bio3Blaster equipment on customer sites. Current models have been improved and may differ from units shown in older videos. This equipment is sold for odor and VOC treatment; we make no claims regarding plant pathogens, pests, crop yield or cannabinoid and terpene chemistry. Results vary with humidity, temperature, air exchange and remaining source material.
What a hydroxyl generator is for
A hydroxyl generator uses ultraviolet light and a catalyst to produce hydroxyl radicals (•OH) in the airstream passing through the machine. The same species forms naturally when sunlight strikes water vapor in the atmosphere, where it breaks down trace gases continuously.
The radical exists for well under a second. It can’t be stored or accumulated the way ozone can — it reacts essentially where it forms. That single fact governs everything about how these machines are specified and deployed, and it’s why airflow (CFM) is the specification worth comparing, not any headline output figure. Air that never passes through the unit never gets treated.
The honest version of the pitch
Hydroxyl treatment is measured in days, not hours, and results aren’t guaranteed. Odor bound deep in drywall, framing, HVAC or subfloor may never release into the air, in which case no amount of runtime fixes it — the source has to come out.
What you get in exchange is the reason the category exists: the equipment runs while the structure stays occupied and your crew keeps working. On a hotel floor, an occupied apartment building, a medical office or a business that can’t close, that’s the difference between a job you can take and one you turn down.
Quick answers
How long does it take?
Is it safe around people?
What humidity does it need?
Which spec should I compare?
Compare all three models
Same fields, same order, no missing rows. Manufacturer coverage ratings assume light to moderate odor — divide by three to four for severe fire work, and stage multiple units.
| Specification | Hydroxyl Extreme | Hydroxymaxx | Hydroxymaxx 2x |
|---|---|---|---|
| Price | $1,173 | $1,573 | $1,973 |
| Blower airflow | 1,850 CFM | 5,500 CFM | 5,500 CFM |
| Rated coverage | 3,000–4,000 sq ft | 3,000–4,000 sq ft | 6,000–7,500 sq ft |
| Hydroxyl chambers | Single | Single | Dual, independent |
| Discharge | Industrial blower | Vertical tornado | Vertical tornado |
| Technology | UV-A PCO + bipolar ion | UV-A PCO + bipolar ion | UV-A PCO + bipolar ion |
| Catalyst | Nano anatase TiO₂ | Nano anatase TiO₂ | Nano anatase TiO₂ |
| Ozone output | None | None | None |
| Power | 110V | 110V | 110V |
| Dimensions / weight | — | 35×22×25 in, 50 lb | 35×22×25 in, 50 lb |
| Duty rating | Continuous 24/7 | Continuous 24/7 | Continuous 24/7 |
| Warranty | 3-year | — year | — year |
| Best for | Restoration, mid-size commercial, healthcare | Tall spaces at the same coverage — vertical discharge | Warehouses, multi-unit, open commercial floors, cultivation |
| Details → | Details → | Details → |
How we rate these machines
Three principles, stated up front so you can judge the rest of the site against them.
Airflow over output claims
Because the hydroxyl radical has a sub-second lifetime, it can’t build up in a room. The machine treats the air moving through it, so CFM sets the ceiling on how fast a job can move. Any vendor leading with a radical-count figure instead of a fan rating is selling the wrong number.
Coverage stated by severity
A single square-footage number is close to meaningless. Coverage collapses by a factor of three or four between light and severe odor. Where we publish a manufacturer rating, we say what severity it assumes.
No claims we can’t stand behind
We don’t make kill claims, disinfection claims or health claims for this equipment. These are odor-removal and VOC-oxidation machines. The published research is clear that hydroxyl radicals are less effective disinfectants than ozone, and we’re not going to pretend otherwise to close a sale.
What these machines won’t do
Hydroxyl generators are not a substitute for mold remediation. Large surface infestations or growth behind walls require established remediation protocols — removal, containment, and the rest. Equipment supports that work. It doesn’t replace it.
Common questions
Hydroxyl radical or hydroxyl ion?
Are all hydroxyl generators the same?
Do these produce ozone?
What about byproducts?
What does an EPA establishment number mean?
Can I ship one to California?
Not sure which one? Talk to us.
Tell us the square footage, ceiling height and odor severity. We’ll tell you which unit — or how many — and whether hydroxyl is even the right tool.