Clean Air as a Service for Industrial Emission Control
Dust, fumes, vapors and odor are inevitable byproducts of industrial processes. Left unmanaged, they create explosion risks, unhealthy work environments, cross contamination, and non-compliance with emission limits. At the same time, traditional ownership models force manufacturers to carry all CAPEX and performance risk of complex filtration and scrubber systems.
Clean Air as a Service (CaaS) changes this. Instead of buying filters, scrubbers and ducting, you buy guaranteed clean air performance, uptime, emission levels and compliance for a recurring fee.
JOA designs, build and commissions in a performance-based service model:
Tailor-made dust collection
wet and dry scrubbers
vapor & fumes extraction
industrial extraction systems
odor control systems
What is Clean Air as a Service (CaaS)?
Clean Air as a Service is an industrial service model where JOA owns and operates your emission control systems and you pay a recurring fee linked to:
Uptime and availability of extraction at design flow (e.g. ≥ 98% availability)
Verified emission performance (dust, VOC, odor, acidic gases) at stack and/or workplace
Compliance with agreed MAC values, ATEX / explosion-safety design, and permit limits
Where Energy as a Service focuses on heat and energy KPIs, Clean Air as a Service focuses on emissions and workplace safety. The same physical systems (dust collectors, scrubbers, odor control) can later be linked to Energy as a Service for heat recovery.
CaaS shifts you:
From CAPEX challenges to OPEX opportunities!
No large upfront investment in extraction systems, scrubbers or ducting
From equipment ownership to guaranteed outcomes
JOA takes responsibility for design, remote monitoring, preventive maintenance and performance
How Clean Air as a Service works (CaaS)
Assessment and Pre-Engineering: understanding dust, vapors and odor
Every CaaS project starts with a technical deep dive into your air flows and emissions:
Measuring and mapping emission sources at machines, dryers, reactors, conveyors and open transfer points
Characterizing dust and aerosols (particle size, stickiness, explosivity, UFPs) and gas/vapor composition (VOC, SO₂, NOx, ammonia, acids, odor units)
Review of current Emission Limits and MAC values (indoor and outdoor) and ATEX zoning requirements.
Measuring flows, temperatures and pressure drops; building an air-technical model (GCM) as is standard in our Dust Collection and Wet Scrubber projects.
All of the above in included in a Pre-Engineering Study. It includes Air Technical Modelling and creates the best possible Concept Designs. It’s the first of the proven 4 step approach used for all wet scrubbers and dust collection systems.
CaaS concept design and performance guarantees
Based on the study, JOA proposes one or more Clean Air as a Service concepts, specifying:
System architecture:
Industrial Dust Collection Systems
Wet Scrubbers and/or dry scrubbers
Vapor & Fumes Extraction Systems
Industrial Odor Control Systems with ESP, activated carbon, cold plasma, photocatalytic oxidation
Cyclones and Central Vacuum Cleaning Systems where needed
KPI guarantees, for example:
Uptime: ≥ 98% availability of extraction capacity at design flow per line or system
Emission limits:
Dust at stack below agreed mg/Nm³ (e.g. aligned with national/EU limits and BAL/BREF levels.
Workplace dust exposure < specified MAC or TWA (e.g. 8 hour average)
Odor removal efficiency and odor units/m³ where relevant
Removal efficiencies for specific compounds (e.g. >80% removal of ammonia or acids, as in the Ammonia Scrubber project)
Service scope:
Remote monitoring of critical parameters
Preventive and corrective maintenance
Filter media and spare parts
Periodic performance checks and emission measurements (done by JOA or partners)
These form the basis for Process Guarantees, a concept that already appears in JOA project references such as the ammonia scrubber case study, where guaranteed dust and gas removal efficiencies were agreed upfront.
SPV, ownership and contract structure
For larger or multisystem projects, Clean Air as a Service can be structured via a Special Purpose Vehicle (SPV):
The SPV invests in and owns the clean air assets (filters, scrubbers, fans, ducting, CVC, instrumentation).
JOA acts as a specialized EPC and O&M provider under a long-term service agreement.
You sign a CaaS contract with the SPV, with payments linked to uptime and emission performance.
For smaller or less complex systems, CAPEX can still be handled conventionally (equipment bought or financed on your side), while JOA provides long-term service contracts with Remote Monitoring and Preventive Maintenance (see Remote Monitoring and Preventive Maintenance).
For you as manufacturer, This flexibility allows you to:
Use CaaS + SPV when CAPEX is a barrier or off-balance treatment is desired.
Use classic CAPEX + service when investment size is manageable.
Engineering, installation and commissioning
JOA then executes the project using the same validated process as for your existing systems:
Detailed design and modelling (Air Technical Modelling, CFD where needed) for Industrial Extraction Systems.
Fabrication and delivery of dust collectors, scrubbers, odor filters and extraction networks.
Integration with your process control (PLC/DCS), safety systems and building utilities.
Commissioning with acceptance tests against the agreed KPIs (flows, pressures, emissions, noise if relevant).
Because the CaaS contract is linked to long-term performance, the design is naturally optimized for low fouling, access for cleaning, ATEX compliance and stable airflows.
Operation, remote monitoring and preventive maintenance
During the contract period, JOA is responsible for keeping the system within spec, using:
Remote Monitoring (sensors, dashboards, alarms) as described here Remote Monitoring
Preventive Maintenance integrated with data-driven insights, based on the Preventive Maintenance concept
Periodic on-site inspections, filter replacements and functional tests
Scheduled emission measurements and reporting versus legal limits and internal targets
What do you pay for Clean Air as a Service?
The CaaS fee structure is tailored per site but typically includes:
Performance-based and availability-based components
- Availability / uptime fee
- Linked to the % of time the system delivers design extraction capacity and meets critical alarms (e.g. ≥ 98% availability).
- Performance / compliance fee
- Linked to meeting specified dust, gas and odor limits at stack and/or in the workplace.
- Can include bonuses for outperforming targets (e.g. achieving lower than required mg/Nm³ or odor units) and penalties if limits are exceeded due to system underperformance.
“Allin” service scope
Within the CaaS fee, you can include (depending on contract size and scope):
Design, engineering and installation of the clean air systems
Remote Monitoring platform and sensors
Preventive and corrective maintenance
Filter media and cartridges, bag replacement
Wear and tear parts and defined spare parts
Periodic performance checks and emission measurements (carried out by JOA or JOA’s partners)
Excluded by default (paid directly by the client):
1. Chemicals and water for scrubbers
2. Disposal of waste (scrubber sludge, spent activated carbon, collected dust)
3. General plant utilities and services outside the CaaS scope.
These boundaries are consistent with how JOA currently communicates responsibilities around wastewater, sludge and waste handling for wet scrubbers and other emission control equipment.
Why should I change towards Clean Air as a Service now?
According to the traditional model:
You invest CAPEX in filters, scrubbers and extraction systems.
You carry all risks of under-designed systems, fouling, downtime, explosions, and non-compliance.
Maintenance budgets fluctuate and are often delayed, creating hidden risk.
With Clean Air as a Service:
You shift technical performance risk for the emission control systems to a party that designs, monitors and maintains them full time.
You stop arguing about filter media lifetime or spare part costs and focus on measurable clean air KPIs.
You benefit from optimized design: JOA’s content on dust and scrubbers consistently shows that tailor-made, correctly sized systems reduce fouling, cross contamination and over/underextraction compared to generic equipment.
In short, CaaS is a structured way to get the “first-time-right” systems that are already promoted on your dust, scrubber and emission pages – but with aligned incentives.
Reasons
Emission limits are tightening (e.g. lower mg/Nm³ thresholds, stricter odor complaints handling).
ATEX expectations keep rising, with more focus on dust explosion prevention rather than only protection.
Workers and unions are more aware of health impacts of UFPs and hazardous dust, as your dust filtration content also emphasizes.
Potential Risk
Higher probability of non-compliance, complaints or enforcement
Running systems that are not designed for current loads or product mixes
Lost opportunity to combine emission upgrades with energy recovery, which JOA has shown is very feasible (e.g. dryer exhausts with inline Venturi scrubbers and heat recovery on the Emission Limits and wet scrubber pages).
Clean Air as a Service lets you upgrade to future-proof emission and extraction systems now, with limited CAPEX and a clear path to compliance and safety. In many industries like:
Food & beverage
Dairy
Chemicals & Plastics
Paper & Pulp
Defense & Ammunition
Tobacco and other materials processing
When is Clean Air as a Service right for you?
If the system is smaller or very simple, a standard CAPEX + service contract may be more economical. The CaaS concept is aimed at larger, more complex emission-control challenges where performance and risk really matter.
CaaS is typically suitable when:
Your airflows per system are at least 10,000–15,000 Nm³/h, or smaller flows combined across multiple extraction points where complexity is high.
You operate in medium to large process-industry sites with multiple lines and challenging emission profiles.
You face a combination of drivers:
Tightening emission limits or new permits
Explosion safety / ATEX audits
Cross contamination and product quality concerns
Operator turnover because of poor working conditions
Talk to JOA engineers about Clean Air as a Service
Share your emission limits, MAC targets, ATEX questions, and current downtime issues. Together we can determine whether a Clean Air as a Service model, potentially combined with Energy as a Service, is the right structure for your site.
JOA is trusted for CaaS as:
A specialist in complex industrial filtration and extraction, with >2000 implemented systems. See Emission Limits and the various Case Studies.
A partner that starts with PreEngineering and data, not catalogue sizing.
A provider of Remote Monitoring and Preventive Maintenance for emission and energy systems, as on Remote Monitoring and Preventive Maintenance.
The CaaS offering builds on those same strengths:
Technology first, finance second – CaaS is a logical extension of “validated engineering + service”, not a new financial product in search of a problem.
Process guarantees are already part of several project references (e.g. the ammonia scrubber with guaranteed removal efficiencies). Now they become standardized commercial KPIs within CaaS.
