Keep the City Out – Indoor Air Quality


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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.

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Keep the City Out – Indoor Air Quality

  1. 1. Welcome to the Camfil Farr Training Academy 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. 1
  2. 2. Keep the City Out – Indoor Air Quality Peter Dyment
  3. 3. Indoor Air Quality issues – Sources and Peoples health Our Lungs capture Air Pollution 3
  4. 4. Indoor Air Quality issuesWe spend about 90% of our time on average in buildings.For comfort we need the air to be clean and in a narrowband of temperature 20-24 deg.C.and humidity 40-60% RH.Clean air can be an issue especially in urban and industriallocations with high levels of background air pollution. 4
  5. 5. Indoor Air Quality – Keep the City outBuildings can give protection against outdoor air pollution Outside Air Average Protective effect of Building envelope and Air conditioning system Inside Air Average 5
  6. 6. PM 2.5 Particles are a health risk in city environments 6
  7. 7. Indoor Air Quality issuesOutside sources can be combustiongases and particles that can be toxicand be inhaled giving healthproblems 7
  8. 8. Indoor Air Quality issues - SourcesFine combustion particles are produced inlarge quantities from burning fossil fuels.These health damaging particles are ableto penetrate into buildings.Air filters can clean supply air and deliverbetter Indoor Air Quality into the building. 8
  9. 9. Indoor Air Quality issues - SourcesChemical cleaners, paints, sprays,cooking, heating systems are all sourcesof particles in liquid and solid as well asgas phase contaminants.People also produce significant amountsof these types of contaminants.Air filters can arrest these contaminantsand deliver better Indoor Air Quality. 9
  10. 10. Indoor Air Quality issuesThe fine combustion particles aresmall, toxic, jagged, insoluble andusually chemically reactive. Theyshould be removed from air as theyare a public health hazard. 10
  11. 11. Indoor Air Quality issuesWe need to appreciate where contaminants come fromSources Outside the BuildingSources 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, SaltsTypes of Gases : Carbon dioxide(CO2), Carbon Monoxide (CO),Nitrogen oxides (Nox) NO NO2, Sulphur dioxide (SO2), Ozone (O3),Formaldehyde, Radon, VOC’s pesticides. 11
  12. 12. Why is EN13779:2007 is an important standard?EN13779:2007 is an important standard because it advisesthe required filter classification for clean healthy HVAC air.EN779:2011 is needed to provide a test for classification thatgives a consistent and accurate measure of filter particulateefficiency (As close to real life as possible).Also importantEN1886:2007 gives minimum leakage rates for F7 to F9filters (F7=2% F8=1% F9=0.5% of volume flow rate). FrontWithdrawal Frames (FWF) are required to meet this criteria.EN13053:2007 advises air handling unit manufacturers that asingle stage AHU filter system should be minimum F7. 12
  13. 13. Step 2/ Determine the outdoor air qualityThe 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 13
  14. 14. Low Energy Air Filter gives cleaner Indoor Air Quality 14
  15. 15. Stay healthy – The solutions?Effective particulate Air Handling Unit filtrationHi-Flo F7 to F9: The best first stage for optimised low pressuredrop and long life. Maximum protection of second stage filtration, toachieve 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. Combination filters can remove gas phase pollution and particulates CityFlo and CityCarb 15
  16. 16. Camcleaner a personal solution that filters out finecombustion particulates where and when needed. 16
  17. 17. Indoor Air Quality issues – The HVAC systemThe HVAC system is a source ofcontamination. Moulds and Fungalgrowths can take hold as dirtdeposits can harbour bacterialcolonies. Good system design andregular maintenance can resolvethis problem. Surveys and regularinspections are required. 17
  18. 18. Low Energy Air Filter Service Packages• 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. 18
  19. 19. Indoor Air Quality issues – Peoples healthOur Solutions clean air and Keep the city out 19
  20. 20. 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 blog and subscribe to the RSS Feed 20