EcoFlow
HVAC Filtration
EcoFlow
HVAC Filtration
Better air. Lower energy.
Less carbon.
Better air. Lower energy.
Less carbon.

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EcoFlow re-engineers the filtration inside your building's HVAC, so cleaner air costs less to run, not more.
EcoFlow re-engineers the filtration inside your building's HVAC, so cleaner air costs less to run, not more.
Highly efficient at removing PM2.5 pollution, airborne viruses, bacteria & pathogens
Highly efficient at removing PM2.5 pollution, airborne viruses, bacteria & pathogens
Highly efficient at removing PM2.5 pollution, airborne viruses, bacteria & pathogens
EcoFlow complies with ASHRAE 52.2 standards of removal efficiency of 99%, corresponding to MERV ratings of 15 to 16.





EcoFlow complies with ASHRAE 52.2 standards of removal efficiency of 99%, corresponding to MERV ratings of 15 to 16.

EcoFlow complies with ASHRAE 52.2 standards of removal efficiency of 99%, corresponding to MERV ratings of 15 to 16.

Clean air has always come at the expense of energy, waste, and cost.
Calculations based on a 40-floor commercial office building (~33,000 sqm) with 67 AHUs, inclusive of recurring filter replacements and associated HVAC fan energy costs. Efficiency on PM2.5 basis (F7 = ISO 16890 ePM2.5 65%).
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Clean air has always come at the expense of energy, waste, and cost.
Calculations based on a 40-floor commercial office building (~33,000 sqm) with 67 AHUs, inclusive of recurring filter replacements and associated HVAC fan energy costs. Efficiency on PM2.5 basis (F7 = ISO 16890 ePM2.5 65%).
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Clean air has always come at the expense of energy, waste, and cost.
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Calculations based on a 40-floor commercial office building (~33,000 sqm) with 67 AHUs, inclusive of recurring filter replacements and associated HVAC fan energy costs. Efficiency on PM2.5 basis (F7 = ISO 16890 ePM2.5 65%).
Clean air has always come at the expense of energy, waste, and cost.
Common Standard
F7
MERV 13
Annual Cost of Ownership (Filters + AHU Energy
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership (Filters + AHU Energy
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Calculations based on a 40-floor commercial office building (~33,000 sqm) with 67 AHUs, inclusive of recurring filter replacements and associated HVAC fan energy costs. Efficiency on PM2.5 basis (F7 = ISO 16890 ePM2.5 65%).
One modular system, configured to every AHU and FCU
in your building.
One modular system, configured to every AHU and FCU in your building.
One modular system, configured to every AHU and FCU in your building.
EcoFlow adapts to your existing units. The same technology, shaped to each unit in the building.
EcoFlow adapts to your existing units. The same technology, shaped to each unit in the building.
AHU
AHU

FCU
FCU

EcoFlow utilizes a proprietary low-resistance filtration technology to capture particles down to 0.1 micron, from PM2.5 and dust to airborne microbial contaminants.
EcoFlow delivers HEPA-level performance, without the cost and waste of traditional filtration.
Calculations are based on a case study done on an Office Tower with total 28 floors and 56 AHUs. Typical AHU flow rate 18,300 CMH
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy)
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy)
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
A New STANDARD
EcoFlow
EMG™
Annual Cost of Ownership
(Filter + AHU Energy)
$290K
PM2.5 filtration efficiency
99%
CO2 per year for filters
81t
EcoFlow delivers HEPA-level performance, without the cost and waste of traditional filtration.
Calculations are based on a case study done on an Office Tower with total 28 floors and 56 AHUs. Typical AHU flow rate 18,300 CMH
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy)
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy)
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
A New STANDARD
EcoFlow
EMG™
Annual Cost of Ownership
(Filter + AHU Energy)
$290K
PM2.5 filtration efficiency
99%
CO2 per year for filters
81t
EcoFlow delivers HEPA-level performance, without the cost and waste of traditional filtration.
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership
(Filters + AHU Energy)
$502K
PM2.5 filtration efficiency
99.99%
CO2 per year for filters
420t
Common Standard
F7
MERV 13
Annual Cost of Ownership
(Filters + AHU Energy)
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
A New STANDARD
EcoFlow
EMG™
Annual Cost of Ownership
(Filter + AHU Energy)
$290K
PM2.5 filtration efficiency
99%
CO2 per year for filters
81t
Calculations are based on a case study done on an Office Tower with total 28 floors and 56 AHUs. Typical AHU flow rate 18,300 CMH
EcoFlow delivers HEPA-level performance, without the cost and waste of traditional filtration.
A New STANDARD
EcoFlow
EMG™
Annual Cost of Ownership (Filter + AHU Energy)
$290K
PM2.5 filtration efficiency
99%
CO2 per year for filters
81t
Common Standard
F7
MERV 13
Annual Cost of Ownership (Filters + AHU Energy)
$318K
PM2.5 filtration efficiency
~65%
CO2 per year for filters
328t
Premium Option
HEPA
H13 / H14
Annual Cost of Ownership (Filters + AHU Energy)
$502K
CO2 per year for filters
99.99%
CO2 per year for filters
420t
Calculations are based on a case study done on an Office Tower with total 28 floors and 56 AHUs. Typical AHU flow rate 18,300 CMH
Savings from month one. No upfront capital.
Savings from month one. No upfront capital.


Case Study
Case Study
Building Profile: Office Tower
Total Floors: 28
Building Profile: Office Tower
Total Floors: 28
Annual Savings
Annual Savings
$27,000
$27,000
compared to
F7 Filters (~10%)
compared to
F7 Filters (~10%)
$187,000
$187,000
compared to
HEPA Filters (~30%)
compared to
HEPA Filters (~30%)
HVAC Profile:
Typical AHU Flow Rate: 18,300 CMH
Total Number of AHUs: 56
HVAC Profile:
Typical AHU Flow Rate: 18,300 CMH
Total Number of AHUs: 56

Cleaner Air. Lower Energy.
Reduced Carbon Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Calculations based on Twin Tower of total 28 floors with 56 AHUs
From reduced filter replacements and lower HVAC energy consumption
Up to 30% savings
Compared to HEPA filters
annual carbon reduction from switching to EcoFlow technology
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs

Cleaner Air. Lower Energy.
Reduced Carbon Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Calculations based on Twin Tower of total 28 floors with 56 AHUs
From reduced filter replacements and lower HVAC energy consumption
Up to 30% savings
Compared to HEPA filters
annual carbon reduction from switching to EcoFlow technology
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs
Cleaner Air.
Lower Energy.
Reduced Carbon
Emissions.
Up to 30% savings
Compared to HEPA filters
From reduced filter replacements and lower HVAC energy consumption
339 Tons metric tons
tCO₂e / year reduction compare to HEPA
annual carbon reduction from switching to EcoFlow technology
Calculations based on Twin Tower of total 28 floors with 56 AHUs
EcoFlow is one part of a complete Nafas system that senses, filters, and manages your building's air.
01
In-duct Monitoring
Sensors inside the AHU and ductwork track air quality at the source, before it reaches the space.

02
Indoor monitoring
A monitor in the occupied space measures what people actually breathe. Wall-mounted or on a stand.

03
Building dashboard
Facilities teams see air quality across every space, track trends and insights, and pull ESG and certification reports.

EcoFlow is one part of a complete Nafas system that senses, filters, and manages your building's air.
01
In-duct Monitoring
Sensors inside the AHU and ductwork track air quality at the source, before it reaches the space.

02
Indoor monitoring
A monitor in the occupied space measures what people actually breathe. Wall-mounted or on a stand.

03
Building dashboard
Facilities teams see air quality across every space, track trends and insights, and pull ESG and certification reports.

04
Operations app
For facility operations teams on the move: real-time status, alerts, and remote control from anywhere.

EcoFlow is one part of a complete Nafas system that senses, filters, and manages your building's air.
01
In-duct Monitoring
Sensors inside the AHU and ductwork track air quality at the source, before it reaches the space.

02
Indoor monitoring
A monitor in the occupied space measures what people actually breathe. Wall-mounted or on a stand.

03
Building Dashboard
Facilities teams see air quality across every space, track trends and insights, and pull ESG and certification reports.

SAFETY & TESTING
SAFETY & TESTING
Safe by design.
Independently tested.
Safe by design.
Independently tested.
Safe by design.
Independently tested.
Dielectric-encapsulated electrodes mean no arcing and no ozone build-up — high-efficiency filtration, verified on a single-pass basis by an accredited third-party lab.
Dielectric-encapsulated electrodes mean no arcing and no ozone build-up — high-efficiency filtration, verified on a single-pass basis by an accredited third-party lab.
Dielectric-encapsulated electrodes mean no arcing and no ozone build-up — high-efficiency filtration, verified on a single-pass basis by an accredited third-party lab.
Independent re-verification with TÜV is underway, tested against ISO 16890, UL 2998, IEC 60335-2-65, and ASTM F2101.
Independent re-verification with TÜV is underway, tested against ISO 16890, UL 2998, IEC 60335-2-65, and ASTM F2101.
Independent re-verification with TÜV is underway, tested against ISO 16890, UL 2998, IEC 60335-2-65, and ASTM F2101.
VERIFIED SINGLE-PASS RESULTS
VERIFIED SINGLE-PASS RESULTS
PM2.5 removal
PM2.5 removal
PM2.5 removal
97.7%
97.7%
97.7%
Airborne microbial reduction (bacterial)
Airborne microbial
reduction (bacterial)
Airborne microbial reduction
(bacterial)
96.6%
96.6%
96.6%
Airflow resistance
Airflow resistance
Airflow resistance
~24 Pa
~24 Pa
~24 Pa
Ozone
Ozone
Ozone
16× below limit
16× below limit
16× below limit
Electrical safety
Electrical safety
Electrical safety
Full Pass
Full Pass
Full Pass
Frequently Asked Questions
Frequently Asked Questions
Frequently Asked Questions
Can EcoFlow be retrofitted into an existing HVAC system?
Yes. EcoFlow can be integrated into many existing AHUs, FAHUs, and FCUs without replacing the entire HVAC system. A technical assessment is conducted to confirm dimensions, airflow, access, electrical requirements, and the appropriate configuration.
Yes. EcoFlow can be integrated into many existing AHUs, FAHUs, and FCUs without replacing the entire HVAC system. A technical assessment is conducted to confirm dimensions, airflow, access, electrical requirements, and the appropriate configuration.
Can EcoFlow be retrofitted into an existing HVAC system?
Why should we consider EcoFlow if our building already has air filters?
Why should we consider EcoFlow if our building already has air filters?
Will EcoFlow increase the pressure drop in our HVAC system?
Will EcoFlow increase the pressure drop in our HVAC system?
What maintenance does EcoFlow require?
What maintenance does EcoFlow require?
How will we know that EcoFlow is actually improving indoor air quality?
How will we know that EcoFlow is actually improving indoor air quality?
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EcoFlow utilizes a proprietary low-resistance filtration technology to capture particles down to 0.1 micron, from PM2.5 and dust to airborne microbial contaminants.
© 2026 Nafas Technologies Pte. Ltd.
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© 2026 Nafas Technologies Pte. Ltd.
For Business
For Homes
Technology
Learn
Company
© 2026 Nafas Technologies Pte. Ltd.


















