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Welcome to the Camfil Farr Training Academy

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This webinar examines the issue of maintaining good Indoor

Air Quality in city buildings and the use of Low Energy Air

Filters to help achieve this aim.

Keep the City Out – Indoor Air Quality

Peter Dyment

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Indoor Air Quality issues – Sources and Peoples heal th

Our Lungs capture Air Pollution

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Indoor Air Quality issues

We spend about 90% of our time on average in buildings.

For comfort we need the air to be clean and in a narrow band of temperature 20-24 deg.C.and humidity 40-60% RH.

Clean air can be an issue especially in urban and industrial locations with high levels of background air pollution.

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Indoor Air Quality – Keep the City outBuildings can give protection against outdoor air pollution

Outside Air Average

Inside Air Average

Protective effect of Building envelope and Air conditioning system

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PM 2.5 Particles are a health risk in city environments

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Indoor Air Quality issues

Outside sources can be combustion gases and particles that can be toxic and be inhaled giving health problems

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Indoor Air Quality issues - Sources

Fine combustion particles are produced in large quantities from burning fossil fuels.These health damaging particles are able to penetrate into buildings.

Air filters can clean supply air and deliver better Indoor Air Quality into the building.

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Indoor Air Quality issues - Sources

Chemical cleaners, paints, sprays, cooking, heating systems are all sources of particles in liquid and solid as well as gas phase contaminants.People also produce significant amounts of these types of contaminants. Air filters can arrest these contaminants and deliver better Indoor Air Quality.

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Indoor Air Quality issues

The fine combustion particles are small, toxic, jagged, insoluble and usually chemically reactive. They should be removed from air as they are a public health hazard.

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Indoor Air Quality issues

We need to appreciate where contaminants come from

Sources Outside the Building

Sources Inside the Building (Don’t forget people and HVAC system)

Types of Particles : Solid , Liquid, Organic, Non organicBacteria, Virus, Pollen, Fungal spores, Combustion particles, Sand, Salts

Types of Gases : Carbon dioxide(CO2), Carbon Monoxide (CO), Nitrogen oxides (Nox) NO NO2, Sulphur dioxide (SO2), Ozone (O3), Formaldehyde, Radon, VOC’s pesticides.

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EN13779:2007 is an important standard because it advises the required filter classification for clean healthy HVAC air.

EN779:2011 is needed to provide a test for classification that gives a consistent and accurate measure of filter particulate efficiency (As close to real life as possible).

Also importantEN1886:2007 gives minimum leakage rates for F7 to F9 filters (F7=2% F8=1% F9=0.5% of volume flow rate). Front Withdrawal Frames (FWF) are required to meet this criteria.

EN13053:2007 advises air handling unit manufacturers that a single stage AHU filter system should be minimum F7.

Why is EN13779:2007 is an important standard?

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Step 2/ Determine the outdoor air quality

The EN13779 defines 3 categories of outdoor air:

Category Description

ODA 1 Pure air which may be only temporarily dusty (e.g. pollen)

ODA 2 Outdoor air with high concentrations of particulate matter and/or gaseous pollutants

ODA 3 Outdoor air with very high concentrations of gaseous pollutants

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Low Energy Air Filter gives cleaner Indoor Air Quality

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Effective particulate Air Handling Unit filtration

Hi-Flo F7 to F9: The best first stage for optimised low pressure

drop and long life. Maximum protection of second stage filtration, to

achieve maximum life time.

Opakfil Green F9: The best second stage to eliminate more than

95% of all particle over 0.4 µm. Highest levels of duct hygiene are assured.

Stay healthy – The solutions?

Combination filters can remove gas phase pollution and particulates

CityFlo and CityCarb

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Camcleaner a personal solution that filters out fine combustion particulates where and when needed.

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Indoor Air Quality issues – The HVAC system

The HVAC system is a source of contamination. Moulds and Fungal growths can take hold as dirt deposits can harbour bacterial colonies. Good system design and regular maintenance can resolve this problem. Surveys and regular inspections are required.

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Low Energy Air Filter Service Packages

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• Low Energy Air Filter AHU

filter mounting upgrades

• Complete Low Energy Air

Filter installation and

maintenance contracts

• AHU filter monitoring with

demonstration of benefits

• Additional Duct cleaning and

coil cleaning AHU system

packages.

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Indoor Air Quality issues – Peoples health

Our Solutions clean air and Keep the city out

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THANK YOU for attending this webinar session

ANY QUESTIONS?

Please do not hesitate to contact Camfil Farr for any additional information or to arrange a visit.

For more information about clean air solutions, improving air quality, low energy air filters, CRC (Carbon Reduction Commitment), AHUs (Air

Handling Units) and the EPBD, visit the

www.lowenergyairfilter.co.uk

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