Camfil City-Flo ePM1 85% Carbon Bag Filter 592x592x534-10

Particles and odours in one filter stage

The Camfil City-Flo 0185 592x592x534-10 combines particle filtration and a broad-spectrum activated carbon layer in ten glass fibre and carbon pockets. Camfil describes it as a two-in-one solution that removes solid and gaseous contaminants in one filter stage and can upgrade existing installations, with the application stated as particle and odour removal in hospitals, offices, airports and similar buildings.

This is the F9 / ePM1 85% version of the product, at 592 x 592 x 534 mm and 3,400 m3/h. Gulf city-centre towers and airports see traffic exhaust, ozone and sulphur compounds along with dust, which is the type of low-to-moderate gaseous load the datasheet says the carbon is meant for.

How the media is described

The datasheet says the filter uses a highly effective broad-spectrum carbon layer with a Rapid Adsorption Dynamics (RAD) mechanism, designed to be efficient against the multiple chemicals typically present in low or moderate concentrations in city-centre buildings and other locations. The unit is classified according to ISO 10121-3 and mounted in a robust galvanised header frame.

Technical specification

How to read the ISO 10121 entries

Four gas columns are printed: ozone, SO2, NO2 and toluene. The sheet prints a class letter group and a number for each, shown above as HD 85, MD 55, LD 85 and MD 80. The abbreviations are not defined on the datasheet page we fetched, so treat the string as printed and ask for the ISO 10121-3 test report before using it in a design specification.

Temperature and humidity limits are tighter than for the plain bag filters: 50 degC and 70 percent relative humidity. Do not place the filter immediately downstream of a cooling coil that can carry droplets, and keep it away from hot-gas sources.

Sizes and classes in the City-Flo table

Going from the 60% to the 85% version adds 60 Pa (derived) at the same airflow and size; the gas performance entries are identical on both lines.

What to confirm before ordering a carbon bag filter

Ask which gases matter on the site. Carbon filters are sized to the gas, concentration and required life, and the datasheet itself limits the product to low or moderate concentrations. For heavy industrial fumes, such as sour gas near a petrochemical complex, a bag filter of this type is not the right tool;

Provide the existing housing depth (534 mm), the airflow per filter (3,400 m3/h for the 592 x 592 size) and the room or building use. State whether you are replacing a particle-only F9 filter, since the City-Flo adds 6 kg of weight per element against the lighter plain bag types, and the additional pressure drop has to be absorbed by the fan.

Request the ISO 10121-3 report for the 0185 class, and confirm storage conditions: as general practice, keep carbon elements sealed and dry until installation.

Compared with plain F9 bag filters

A plain F9 bag filter of the same size would be limited to particle control; the City-Flo adds the carbon layer for odour and gas removal in the same stage, and Camfil proposes it for upgrading existing 2-in-1 installations. The cost of that capability in the datasheet numbers is a higher initial pressure drop (200 Pa against 60 to 120 Pa for the bag filters in this set) and a lower temperature and humidity limit (50 degC and 70 percent).

For project use, ask for energy information separately: the sheet has no kWh per year or energy class for this type.

Selection and operating notes

The recommended final pressure drop is 300 Pa (200 + 100, derived), which is higher than most bag filters, so check that the AHU fan has the margin. Because carbon loads with gases, an end-of-life decision is not set only by the pressure drop; the datasheet does not give a carbon life figure, so base replacement on supplier guidance and site gas monitoring.

Front and side access housings and frames are available. See other filtration elements.

Fitting and replacement notes

The carbon layer adsorbs gases until it is saturated, after which odour removal falls even when the particle stage still has capacity, so plan replacement from the odour performance as well as the pressure drop. Handle the filter carefully to avoid dust from the carbon, store it dry in its packing, and confirm that the housing accepts the 534 mm depth.

Information needed for a quotation

Send the full filter code, the quantity, the housing or frame type it must fit, the delivery location in Oman or the GCC and any prefilters or accessories, so that the complete filter set can be quoted together.

Documents and supply information

The manufacturer data sheet is attached to this page and should be read together with the project specification before a purchase is confirmed. Filter class, airflow, pressure drop and dimensions are quoted as printed on that sheet. Lead time, stock position and certificates available with the shipment are confirmed in the quotation, and we supply to Oman and the wider GCC region for industrial, utility and building services projects.

Frequently asked questions

What does the City-Flo remove? Particles (ePM1 85%) and gaseous contaminants through its broad-spectrum activated carbon layer.

What is the pressure drop? 200 Pa initial at 3,400 m3/h.

What temperature limit applies? 50 degC, with relative humidity up to 70 percent.

Which standard is cited? ISO 10121-3 for classification of the gas phase performance.

Is Seven Star LLC the manufacturer? No. Seven Star LLC is an independent supplier in Muscat; confirm the exact type, size and class with the datasheet before ordering.