E·Filter — Electrostatic filter for AHU and MVHR
High-performance filtration.Zero consumables.−80% energy.
The TEQOYA E·Filter replaces the pre-filter and fine filter of air handling units with a single washable electrostatic filter, rated for a ten-year service life.
- ePM1 95%
- Pressure drop 20–60 Pa
- 1 watt
- Zero consumables
- Made in France

A technological breakthrough for air handling units
Air filtration accounts for 30% of the electricity consumed by a building ventilation system. Disposable filters represent a significant share of a building's environmental footprint, in energy as well as in consumables.
The E·Filter is the culmination of electrostatic technology development for air filtration: ozone-free ionisation, electrostatic collection with no discharge risk, and low-footprint materials.
Efficiency validated by CETIAT
Efficiency measured to the ISO 16890 standard by an independent laboratory.
Energy savings, fast payback
Dividing the pressure drop by five cuts the fan consumption accordingly.
Room to increase the ventilation flow rate
The recovered pressure margin can be reinvested in air renewal.
Simplified operation
Reduced maintenance, and no more disposable-filter stock management.
Ten-year service life and safe operation
Electrostatic collection with no discharge risk, ozone emissions below 1 ppb.
Air filters and purifiers designed and manufactured at the TEQOYA site in Gironde, France, under ozone-free ionisation patents reconciling indoor air quality with the environmental quality of buildings. This technology is a TEQOYA — ADDAIR joint development.
Documented tests in real conditions
Two independent industrial deployments confirm the performance of TEQOYA electrostatic filtration.
Paul-Émile Victor secondary school (Gironde)
E·Filter against an F7 bag filter on a 2,800 m³/h air handling unit
- Retrofit with no modification to the unit (595 × 595 mm)
- Measured pressure drop: 30 Pa after 4 months
- Air flow gain: +10%
- Fan power reduction: −20%
Education sector · Gironde department
ADEME TERScIAirE project (LOCIE / ALDES)
E·Filter in a 350 m³/h ALDES housing, tested for 6 months without servicing
- Filtration efficiency: ePM1 = 95%
- Pressure drop: about 15 Pa
- Ozone: < 1 ppb
- Stable performance over 6 months
Research & commercial buildings · LOCIE / ADEME
E·Filter against mechanical filters
How the TEQOYA E·Filter compares with conventional media filters.

| Criterion | TEQOYA E·Filter | Media filter (F7–F9 per EN 779) |
|---|---|---|
| Filtration efficiency (ePM1) | 60–95% depending on class | 50–95% depending on class |
| Pressure drop | Very low: 20–40 Pa | High: 150 Pa and above |
| Fan consumption | −90% against an equivalent media filter | Major energy item |
| Consumables and waste | None: washable filter | Replaced twice a year |
| Carbon footprint over 10 years | About 500 kg CO₂eq | About 5,000 kg CO₂eq and above |
| Ozone emissions | < 1 ppb | Neutral |
| Stability over time | Stable pressure drop | Rising pressure drop, hence rising consumption |
| Service life | About 10 years, 5-year warranty | 6 months per filter |
Technical specifications
E·Filter HVAC — electrostatic filters for ventilation systems, replacing pre-filter and fine filter with a single solution.
| Air flow rate | Up to 3,600 m³/h (592 × 592 mm section) |
|---|---|
| Section | 592×592 / 592×296 / 296×592 / 296×296 mm |
| IO stage (ioniser) | 48 mm (fixed) |
| COLL stage (collector) | 96 mm (F7) / 150 mm (F8) / 200 mm (F9) |
| Pressure drop | 20–60 Pa depending on class |
| Filtration efficiency | ePM1 = 60–95% (ISO 16890) |
| Ozone emissions | < 1 ppb (IEC 60335-2-65) |
| Power | 1 watt per filter |
| Power supply | 110–230 Vac, 50/60 Hz |
| Servicing | Vacuum cleaner, every 6 months |
| Service life / warranty | About 10 years / 5-year warranty |
| Weight | 12 kg (592 × 592 mm configuration) |
| Certifications | CE (safety + EMC) · ISO 16890 · IEC 60335-2-65 |
| Connectivity | BMS on request |
| Origin | France (TEQOYA + ADDAIR) |

Catalogue variants
Naming scheme: TEQ-EF-{section}-{collector depth}-{combined or separate stages}, followed by the "br" suffix for variants with a 20 × 20 mm flange.
Example: TEQ-EF-6060-10-1br
| Class | 30×30 900 m³/h 296 × 296 mm | 60×30 / 30×60 1,800 m³/h 592 × 296 mm | 60×60 3,600 m³/h 592 × 592 mm |
|---|---|---|---|
| F7 (ePM1 ≥ 60%) | TEQ-EF-3030-10 144 mm | 30 Pa | TEQ-EF-6030-10 144 mm | 30 Pa | TEQ-EF-6060-10 144 mm | 30 Pa |
| F8 (ePM1 ≥ 80%) | TEQ-EF-3030-15 198 mm | 45 Pa | TEQ-EF-6030-15 198 mm | 45 Pa | TEQ-EF-6060-15 198 mm | 45 Pa |
| F9 (ePM1 ≥ 95%) | TEQ-EF-3030-20 248 mm | 60 Pa | TEQ-EF-6030-20 248 mm | 60 Pa | TEQ-EF-6060-20 248 mm | 60 Pa |
Configuration options
- Structure
- Combined mounting (-1) or separate modules (-2)
- Outer shape
- Without frame, or with a 20 × 20 mm frame ("br" suffix)
- Material (fire class)
- 3 mm PP (M4) or 4 mm PC (M1)
- Connectivity
- Modbus BMS, dry-contact BMS, or TEQOYA Wi-Fi supervision
Shape options

Combined stages (-1)
Ioniser and collector in a single block, for mounting in one housing at least 150 mm deep.

Separate stages (-2)
Ioniser and collector mounted in two housings, typically those intended for the pre-filter and the fine filter.

Without flange
Direct mounting in the existing filter housing.

With flange
Rail mounting, thanks to the 20 × 20 mm perimeter frame.
Interested in the TEQOYA E·Filter?
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