Evidence-led Healthy Air systems
This page brings together product-laboratory testing, external studies, and real-world monitoring relating to Healthy Air Technology air purifiers. Results apply to the named product, to the stated study setting, test conditions, or measurement period. They do not guarantee performance in every setting.
Evidence at a glance
Product and laboratory testing
Measured performance under defined conditions
Testing covers clean air delivery rate, particulate performance, selected gaseous pollutants, selected biological indicators, ozone and certification data.
Independent and external studies
Assessment in real indoor environments
External studies include clinical-environment monitoring by MTIF and office indoor air quality assessment by CETEC.
Case studies and user evidence
Observed use in customer settings
Case studies show how Healthy Air Technology systems have been used in healthcare, dental, workplace, sport, domestic and retrofit-related environments.
Evidence pathways
Product and laboratory testing
What has been measured under controlled conditions?
Product and laboratory testing helps show how Healthy Air Technology systems perform under defined methods. This evidence is useful for product specification, room sizing and technical evaluation.
Clean air delivery
CADR and particulate testing for indicators such as smoke, dust, pollen and PM2.5.
Selected gases and odours
Testing includes selected pollutants such as nitrogen dioxide, sulphur dioxide, formaldehyde and TVOCs.
Biological indicators
Laboratory testing includes selected bacterial and viral indicators under defined test conditions.
Safety and compliance
Evidence includes ozone assessment and certification data for selected Healthy Air Technology systems.
Independent and external studies
What has been observed in real spaces?
External studies help show how Healthy Air Technology systems behave outside laboratory conditions. These studies should be interpreted as evidence from specific environments, not as universal performance guarantees.
MTIF GP practice study
Clinical-environment monitoring of bacteria and mould indicators over a 10-day period.
CETEC office assessment
Office assessment measuring particulate matter and TVOC concentrations during operation.
Antwerp real-world monitoring
39-day indoor and outdoor monitoring comparison involving an HA500 in Nieuw Zuid, Antwerp.
External listing data
Selected Healthy Air Technology portable systems appear in Singapore NEA portable air cleaner listing data.
Built environment relevance
Useful for workplaces, healthcare, education and retrofit settings where air quality and energy use must be considered together.
Case studies and user evidence
How are Healthy Air systems used by customers?
Case studies provide deployment context, customer experience and practical evidence. They show why a system was selected, how it was used and what was observed in that setting.
Healthcare and dental
Use in clinics, hospitals, dental practices, treatment rooms and waiting areas.
Workplaces
Use in offices, engineering environments and shared working spaces.
Homes and vulnerable users
Use in family homes and personal environments where reassurance and comfort are important.
Retrofit and low-energy buildings
Use where ventilation upgrades may be difficult, disruptive or energy-intensive.
Laboratory Testing Summary
The following is a summary of selected product-specific laboratory results. Each result applies to the named product and the stated test conditions.
Healthy Air 30 (HA30)
| Test area | Reported result |
|---|---|
| Selected bacterial indicators | Escherichia coli: 99.8% in 60 minutes. Staphylococcus albus: 99.9% in 60 minutes. |
| Ozone assessment | Less than 0.003 mg/m³ when measured 5 cm from the outlet at maximum speed. |
Healthy Air 500 (HA500)
| Test area | Reported result |
|---|---|
| H1N1 virus indicator | Greater than 99.99% total decay rate in 60 minutes. |
| Coronavirus 229-E indicator | Greater than 99.99% antiviral kill rate in 60 minutes. |
| Selected bacterial indicators | Escherichia coli and Staphylococcus albus: greater than 99.99% in 60 minutes. |
| TVOC removal | 99.3% in 60 minutes. |
| Particulate CADR | 503.5 m³/h. |
| Ozone assessment | Less than 0.003 mg/m³ when measured 5 cm from the outlet at maximum speed. |
Healthy Air 800 (HA800)
| Test area | Reported result |
|---|---|
| H1N1 virus indicator | At least 99.9% in 60 minutes. |
| Selected bacterial indicators | Escherichia coli and Staphylococcus albus: greater than 99.99% in 60 minutes. |
| Nitrogen dioxide removal | 99.11% in 60 minutes. |
| Sulphur dioxide removal | 93.3% in 60 minutes. |
| Formaldehyde CADR | 437.6 m³/h. |
| Particulate CADR | 799.4 m³/h. |
| Ozone assessment | Less than 0.003 mg/m³ when measured 5 cm from the outlet at maximum speed. |
How to Read These Results
Results are specific to the named product, substance or organism, test method, setting and measurement period. A result for one pollutant or biological indicator should not be interpreted as a result for all pollutants, organisms or real-world environments.
Actual indoor-air results also depend on room size, ventilation, occupancy, pollutant sources, product placement, operating mode and maintenance.
Technology evidence
Healthy Air Technology systems use D-Orbital Nano Oxide (DNO) catalyst technology alongside HEPA-13 filtration. HEPA-13 filtration captures fine airborne particles, while DNO catalyst media are designed to address selected gaseous pollutants, odours and biological contaminants at the catalyst surface under appropriate conditions.
Filtration
HEPA-13 particle capture
Supports reduction of fine airborne particles such as dust, pollen and other particulate matter.
Catalyst media
DNO catalyst technology
Designed to address selected gases, odours and biological contaminants at the catalyst surface.
Airflow
Smart sensing and airflow design
Helps systems respond to changing indoor conditions and distribute treated air through occupied spaces.
Independent and external studies
Clinical-environment monitoring
MTIF GP practice study
A June 2024 study conducted by MTIF at Nottingham Trent University monitored bacteria and mould indicators in a GP practice over a 10-day period.
The study collected air samples across background, device-testing and post-device periods. It reported reduced mould levels and a downward trend in bacterial levels while the air purifier was in use.
Office air quality assessment
CETEC office study
A CETEC office assessment monitored particulate matter and TVOC concentrations during a six-hour office observation involving an HA800 air purifier. During the monitored operating period, recorded readings changed from 1.51 to 0.34 µg/m³ for PM2.5, from 22.90 to 3.12 µg/m³ for PM10, and from 232 to 95 µg/m³ for TVOCs.
Real-world monitoring
Antwerp indoor/outdoor monitoring
In a 39-day indoor and outdoor monitoring comparison in Nieuw Zuid, Antwerp, an indoor space equipped with an HA500 recorded average PM10 levels 67% lower, PM2.5 levels 71% lower and TVOC levels 50% lower than the outdoor monitor. The comparison was observational and included continuous ventilation and an open window.
External listing
Singapore NEA portable air cleaner listing
Selected Healthy Air Technology portable systems appear in Singapore NEA portable air cleaner listing data.
Built environment context
Office, healthcare and retrofit relevance
External and project evidence is especially relevant for buildings where indoor air quality, energy use, occupancy patterns and ventilation constraints must be considered together.
Case studies and user evidence
Healthcare and dental
Hospitals, clinics and dental settings
Case studies include healthcare, hospital and dental environments where Healthy Air Technology systems were selected to support indoor air quality in occupied professional spaces.
Workplaces
Offices and shared working environments
Workplace case studies include offices, engineering environments and shared workspaces where customers wanted additional air cleaning alongside existing building-management measures.
Homes and retrofit
Domestic and low-energy buildings
Home and retrofit-related case studies describe customer experience in everyday living spaces, vulnerable-user settings and buildings where ventilation changes may be difficult.
Documents available
This page brings together evidence summaries and background material for customers, consultants, councils, healthcare providers, schools, retrofit partners and project teams.
Testing
Product Testing Overview
Summary of product test results, including CADR, selected biological indicators, selected gas-phase pollutants, ozone and certification data.
Technology
DNO White Paper
Technical paper on D-Orbital Nano Oxide catalyst technology for indoor air purification.
Clinical setting
MTIF GP Practice Study
Clinical-environment monitoring of bacteria and mould indicators over a 10-day period.
Office setting
CETEC Office Study
Assessment of particulate matter and TVOC concentrations in an office setting.
External listing
Singapore NEA Listing
External portable air cleaner listing data for selected Healthy Air Technology systems.
Deployments
Case Studies
Deployment examples from healthcare, dental, workplace, elite sport, domestic and retrofit-related settings.
For product-specific questions, contact HATL to discuss the relevant evidence summary and product suitability for your project.
Evidence FAQs
Are Healthy Air Technology systems independently tested?
HATL has evidence from product testing, external assessment and real-world studies, including clinical-environment monitoring by MTIF and office air quality assessment by CETEC. Test conditions, methods and measured pollutants vary by study.
Do results apply to every room?
No. Results depend on room size, ventilation, occupancy, pollutant source, product placement, operating mode and maintenance. HATL can help assess which system is suitable for a specific space.
Can air purifiers replace ventilation?
No. Healthy Air Technology systems support indoor air quality management and can add recirculated air cleaning, but they should be used alongside appropriate ventilation, source control, building-management and infection-control requirements.
What does CADR mean?
CADR stands for Clean Air Delivery Rate. It indicates the volume of cleaned air delivered by a unit under a defined test method. CADR is useful for product sizing, but it should be interpreted with room size, layout, ventilation, occupancy and pollutant sources.
What does DNO add beyond HEPA filtration?
HEPA-13 filtration captures fine airborne particles. D-Orbital Nano Oxide (DNO) catalyst technology is designed to address selected gaseous pollutants, odours and biological contaminants at the catalyst surface under appropriate conditions.
Can HATL provide evidence for procurement or specification?
Yes. HATL can provide product specifications, evidence summaries and project-specific information for consultants, councils, healthcare providers, schools, housing associations and building owners.
Need evidence for a project?
For councils, healthcare providers, schools, housing associations, consultants and building owners, HATL can provide product specifications, evidence summaries and project-specific guidance.
Contact Healthy Air Technology to discuss the relevant evidence summary or product suitability for your space.