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Trimbox NO₂ Filter®

Carbon Filter with Pre Filter

The Titon Trimbox NO₂ Filter^® reduces Nitrogen Dioxide (NO₂) which is predominantly produced by exhaust gases from diesel engines.

Due to this pollution arising in cities and urban areas there is a need to implement mitigation measures to improve the indoor air quality (IAQ). The Trimbox NO₂ Filter^®is an effective means of reducing high NO₂ to an acceptable mean annual concentration level of 40µg/m³.

In addition to outstanding NO2 reductions, the Titon Trimbox active carbon filters also absorb sulphur dioxide, hydrogen sulphide, hydrogen chloride, ammonia odours, volatile organic compounds and solvents.

Features & Benefits

Effective in reducing pollutants in the home, improving Indoor Air Quality (IAQ) and reducing the risk of Toxic Home Syndrome
Low pressure drop
Low cost
Optional ISO ePM1 55% (F7) filter can be installed to further improve indoor air quality
Independently tested by BRE
Small compact design
Compatible with Titon’s range of MVHR units
Fully lined box to reduce duct bound noise and condensation
The unit can be installed in both intake air and supply ducting
98% NO₂ reduction at pre filter concentrations of ≈ 200μg m³
Effective silencer
Third party tested for both NO₂ and Acoustic reductions
ISO Coarse 60% (G4) filter reduces 100% of PM10/35% of PM2.5 particles
ISO ePM1 55% (F7) filter reduces up to 95% of PM2.5 particles

Technical Information

Product Codes and Specific features

Product Codes and Specification

220 x 90 - TP550
Ø160 - TP552
Ø150 - TP554

Removable insulation jacket*: 220x90mm ports - XP9910248 150 or 160mm ports - XP9910305
*Advised to fit before install completed.

ISO ePM1 55% (F7) pre filter (ISO Coarse 60% (G4) standard in units) - XP2010121
Behind unit duct mounting kit - TP558

Specification

Dimensions: 350mm wide x 690mm high (excluding ports) x 205mm deep
Port Dimension: 220mm x 90mm, Ø150mm, Ø160mm

Weight:
Trimbox No2 - 17 Kg
Insulation Jacket - 2.8 Kg
Finish: White Paint

Materials:
Housing: Zintec sheet steel housing, powder coated white
Internals: Zintec sheet steel
Pre-Filter: Grade ISO Coarse 60% (G4) synthetic filters as standard, ISO ePM1 55% (F7) optional
Active Carbon Filter: Honeycomb matrix constructed filter filled with granular active carbon
Internal insulation: Closed cell foamed nitrile rubber, class ‘O’ fire rating
Duct Ports: Plastic
Installation: Install in accordance with regulatory requirements, such as the Domestic Ventilation Compliance Guide (England & Wales) and the Residential Ventilation Association recommendations
These units can be installed either vertically or horizontally
Maintenance: Service and filter cleaning/replacement subject to local environment – see product manual
Accessories: Replacement pre-filters and active carbon filters

Standards

Third party tested for both NO₂ and acoustic reductions based around the standards currently in place for health as specified by the World Health Organisation and the European Union.
Testing references:
COSHH - Workplace exposure limits
COMEAP - Government guidance regarding health of air pollution
WHO - World Health Organisation

Nitrogen Dioxide Filtration and Unit Pressure Drop

(Based on nitrogen dioxide pre filter concentrations of ≈ 200μg m³)

Airflow rate (l/S)	Filter pressure drop (Pa)	Concentration reduction (%)
Trimbox NO2 Filter
29	31	97.6
80.3	134	97.9

Acoustic Data

Independently tested at SRL, report reference C/23276/TO5 to BS EN ISO 7235:2009

Description	Octave Band (Hz) Static Insertion Loss, dB
Description	63	125	250	500	1000	2000	4000	8000
Trimbox NO2 Filter	6.5	7.6	4.9	8.6	16.1	26.8	32.9	36