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About This Item


Full Description


This is the fifth edition of CSA C22.2 No. 187, Electrostatic air cleaners, one of a series of Standards issued by CSA Group under Part II of the Canadian Electrical Code. It supersedes the previous editions, published in 2015, 2009, 1986, and 1982.

This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group.


This Standard applies to
a) electrostatic air cleaners intended to remove dust and dirt from the air and intended for general indoor residential and commercial use;
b) air ionizer type air cleaners;
c) other similar ionizing equipment; and
d) duct-mounted type electrostatic air cleaners, air ionizers, and other similar ionizing equipment intended for general indoor residential use.

This Standard applies to equipment for commercial use that intentionally produces ozone in a temporarily unoccupied space.

This Standard applies to cord-connected and permanently-connected equipment operating at nominal supply voltages up to 600 V, single-phase or polyphase, that is intended to be installed or used in accordance with CSA C22.1, Canadian Electrical Code, Part I.

This Standard applies to portable and duct-mounted air-cleaning devices that incorporate a UV (ultraviolet) lamp that emits UV radiation between 100 and 280 nm (UVC).

This Standard does not apply to electrostatic air cleaners for use in hazardous locations or in atmospheres defined as hazardous by the Canadian Electrical Code, Part I.

This Standard does not apply to air cleaners designed to remove particles other than dust and dirt normally found in heating and ventilating systems.

This Standard does not specify requirements for the effectiveness of air cleaners with respect to the removal of airborne particles.

This Standard does not apply to electrostatic air cleaners intended for industrial use.

This Standard does not apply to air cleaners for residential use that are designed to generate ozone intentionally.

This Standard does not apply to ozone generators, and/or devices intentionally using ozone to treat or condition air, designed exclusively to be connected to air duct systems. 1.11 In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.

Document History

  1. CSA C22.2 NO. 187:20


    Electrostatic air cleaners

    • Most Recent
  2. CSA C22.2 NO. 187-15

    Electrostatic air cleaners, Includes Update No. 1 (2016)

    • Historical Version
  3. CSA C22.2 NO. 187-09 (R2014)

    Electrostatic air cleaners, Includes Update No. 1 (2013)

    • Historical Version
  4. CSA C22.2 NO. 187-M1986 (R2008)

    Electrostatic Air Cleaners

    • Historical Version