CSA C22.2 NO. 187:25

Preface This is the sixth 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 2020, 2015, 2009, 1986, and 1982. The following are the major changes to this edition: a) scope revision to clarify the standard coverage of ozone-generating air cleaners; b) addition of requirements for battery-operated equipment; c) updated construction and testing requirements; and d) new Annex B and Annex C. This Standard is considered suitable for use for conformity assessment within the stated scope of the Standard. This Standard was prepared by the Subcommittee on Electrostatic Air Cleaners, under the jurisdiction of the Technical Committee on Consumer and Commercial Products and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee. 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. Scope 1.1 This Standard applies to air cleaning devices intended to potentially remove or reduce airborne particulate matter, volatile organic compounds (VOCs), or micro-organisms from the air in indoor residential and commercial occupancies with self-contained or duct-mounted applications. 1.2 This Standard applies to powered a) extra-low- and low-voltage electrostatic air cleaners; b) ionizing air cleaners; c) photocatalytic-oxidizer-type air cleaners; or d) ultraviolet (UV) devices that emit ultraviolet radiation (UV-C) between 180 and 280 nm. 1.3 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 the Canadian Electrical Code, Part I. 1.4 This Standard also applies to products powered by a universal serial bus supply source and rechargeable batteries. 1.5 This Standard does not apply to unpowered air filters. 1.6 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. 1.7 This Standard does not specify requirements for the effectiveness of air cleaners with respect to the removal of airborne particles. 1.8 This Standard does not apply to electrostatic air cleaners intended for industrial use. 1.9 This Standard does not apply to air cleaners for residential use that are designed to generate ozone intentionally. 1.10 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.