Active Air
Grease and odours under control, automatically
A chemical-free, automated way to reduce grease build-up inside commercial kitchen exhaust ducts. Lower fire risk, fewer disruptive cleans, better odour control.
See how it works
Designed for continuous operation in commercial environments. Runs only when the extract is operating.
What this delivers for your kitchen.
Reduced fire risk
By preventing grease accumulation inside ducts.
Fewer manual duct cleans
With dramatically reduced cleaning frequency and downtime.
Improved odour control
With treatment inside the duct, at source.
Lower ongoing maintenance burden
Keeps ductwork cleaner between cleans, reducing reactive maintenance and call-outs.
Chemical-free operation
With no stored chemicals or residues.
Fully automatic
With no staff involvement required.
Why exhaust ducts remain a hidden risk
Grease build-up in commercial kitchen extract systems drives three persistent problems: –
- Fire risk increases silently between cleans
- Cleaning is disruptive, costly, and often requires shutdowns
- Odours can spread beyond the kitchen into customer or neighbouring areas
Cleaning is often reactive. Prevention reduces the long-term burden.
Prevent grease from building up in the first place
Our system operates continuously while your extract system is running. It introduces a controlled amount of active oxygen into the duct where it:
- Oxidises grease particles in the airflow
- Dries grease before it can adhere to duct walls
- Neutralises odours at source
An air-pressure sensor ensures it only runs when the extract system is operating.
Designed for controlled, on-demand operation
Generated on demand
not stored or handled
Short-lived in the duct environment
then reverts back to normal oxygen
No chemical residues
and no ongoing chemical costs
What this means for your site
Reduce risk
By preventing grease accumulation, you lower the risk profile inside the ductwork, not just immediately after cleaning.
Reduce disruption and cost
Cleaner ducts for longer can reduce the frequency of manual cleans and minimise shutdowns.
Improve odour control
Odours are treated inside the duct to reduce spread into dining areas or neighbouring spaces.
Low operational load
Once installed, it runs automatically with the extract system. No added tasks for staff
Suitable for commercial kitchens of all types
Restaurants and food courts
Facilities-managed estates
Hotels and hospitality venues
Multi-tenant commercial buildings
Configurations
Single kitchen exhaust systems
Multi-extract installations
Complex duct layouts
Built for teams responsible for risk and continuity
- Facilities managers reducing maintenance burden
- Restaurant owners protecting service continuity
- Health and safety leads seeking chemical-free controls
- Hotel operators managing odour complaints and guest experience
- Estates and compliance teams managing ongoing risk mitigation
A consultative approach, not a one-size-fits-all product
Every kitchen and exhaust system is different. We start by understanding:
- Your duct configuration
- Current cleaning frequency and pain points
- Operational priorities
- Risk and compliance considerations
Our process
- Discovery call
- Site assessment and configuration
- Installation via suitable partners
- Ongoing scheduled checks (as required)
FAQs
Does it replace manual duct cleaning entirely?
It is designed to prevent grease build-up continuously, which can significantly reduce how often manual cleaning is required. Your cleaning schedule should be set based on site use and compliance needs.
Is it chemical-free?
Yes. It operates without stored chemicals and is generated on demand, leaving no chemical residues.
When does it run?
It runs automatically only when the extract system is operating, controlled by an air-pressure sensor.
Is it suitable for multi-site operators?
Yes. It can be configured for different duct layouts, including complex or multi-extract setups.
Reduce grease build-up, odours, and disruption
Tell us what you are dealing with and we will advise whether the system is suitable for your site.
Get In Touch
Contact Details
E:paul.newman@sterafill.com
T: +44 (0)7852 717569
