{
  "url": "https://openlegislation.uk/eu-regulation-2014-66/annex-II/division-3/division-3.3/division-3.3.1",
  "json_url": "https://openlegislation.uk/eu-regulation-2014-66/annex-II/division-3/division-3.3/division-3.3.1.json",
  "legislation": "eur/2014/66",
  "legislation_title": "Commission Regulation (EU) No 66/2014 of 14 January 2014 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to ecodesign requirements for domestic ovens, hobs and range hoods (Text with EEA relevance)",
  "legislation_url": "https://openlegislation.uk/eu-regulation-2014-66",
  "path": "annex/II/division/3/division/3.3/division/3.3.1",
  "kind": "division",
  "number": "3.3.1",
  "heading": "Domestic range hoods with a maximum air flow in any of the available setting higher than 650 m3/h shall automatically revert to an air flow lower than or equal to 650 m3/h in a time tlimit. This is the time limit to extract a volume of air of 100 m3 by the domestic range hood operating with an airflow higher than 650 m3/h, before automatically switching to an airflow of 650 m3/h or lower. It is calculated, expressed in minutes and rounded to the nearest integer as:",
  "text": "tlimit=6000 m3Qmax\nWhere:\nQmax is the maximum air flow of the domestic range hood, including intensive/boost mode if present, in m3/h and rounded to the first decimal place.\nThe mere presence of a manual switch or setting decreasing the air flow of the appliance to a value lower than or equal to 650 m3/h is not considered fulfilling this requirement.",
  "extent": "E+W+S+N.I.",
  "status": null,
  "version": "current",
  "annotations": [
    {
      "type": "footnote",
      "label": "f1",
      "text": "See V = ∫ 0 t Q max 60 × dt which can be simplified to t limit = V max Q max × 60 Where: Vmax is the maximum volume of air to be extracted, set at 100 m3, Qmax is the maximum air flow of the range hood, including intensive/boost mode if present, t is the time expressed in minutes and rounded to the nearest integer, dt is the total time until the air volume of 100 m3 has been reached, tlimit is the time limit, expressed in minutes and rounded to the nearest integer, needed to extract 100 m3."
    }
  ],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/eur/2014/66/annex/II/division/3/division/3.3/division/3.3.1",
    "retrieved_at": "2026-11-01T14:47:59.026804+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}