prEN IEC 63086-1:2026

• Status: Not Published
• Publication Date: 09-Jan-2028
• ICS: 23.120 - Ventilators. Fans. Air-conditioners
• Technical Committee: CLC/TC 59X - Consumer information related to household electrical appliances
• Current Stage: 4060 - Enquiry results established and sent to TC, SR, BTTF - Enquiry
• Start Date: 11-Sep-2026
• Completion Date: 11-Sep-2026
• Ref Project: oSIST prEN IEC 63086-1:2026 - Household and similar electrical air cleaning appliances - Methods for measuring the performance - Part 1: General requirements

• Revises: EN IEC 63086-1:2020 - Household and similar electrical air cleaning appliances - Methods for measuring the performance - Part 1: General requirements
• Effective Date: 06-Aug-2024
• Revises: EN IEC 63086-1:2020/A1:2023 - Household and similar electrical air cleaning appliances - Methods for measuring the performance - Part 1: General requirements
• Effective Date: 06-Aug-2024

prEN IEC 63086-1:2026 is a CLC/IEC draft standard for household and similar electrical air cleaning appliances. It specifies general methods for measuring performance - including test chamber conditions, device placement, pollutant decay, noise, and energy efficiency - for manufacturers, test laboratories, certification teams, and buyers who need comparable results.

What does prEN IEC 63086-1:2026 specify?

prEN IEC 63086-1:2026 sets the general measurement framework for electrically powered household and similar air cleaners. It applies to product testing, not to industrial air cleaners, medical treatment locations, or cooking fume extractors.

The document is organized into clauses for scope, references, terms, classification, test conditions and equipment, chamber air exchange rate, noise, and energy efficiency. It also includes three annexes that support the test method and calculation rules.

Annex	What it covers
Annex A	Informative method for determining the test chamber mixing level
Annex B	Normative standardization of calculations, including concentration, decay slope, and CADR reporting
Annex C	Normative construction requirements for the test stand for wall and direct plug-in type air cleaners

What are the key requirements of prEN IEC 63086-1:2026?

prEN IEC 63086-1:2026 focuses on a controlled test environment, consistent placement of the device under test (DUT), and standardized calculations so that results can be compared across models and laboratories.

Scope and product coverage

The standard applies to electrically powered household and similar air cleaners with rated input voltage up to and including 250 V for single-phase AC circuits, up to and including 480 V line-to-line for three-phase AC circuits, and up to and including 48 V for DC circuits. Battery-operated appliances are included, and dual-supply products are treated as battery-operated when they run in battery mode.

For combination products, the measurements are taken on the air-cleaning function. In practice, this lets a buyer or test lab separate air-cleaning performance from other functions such as humidifying, heating, or air conditioning.

Test conditions and DUT operation

Tests are run in a chamber protected from outside air, direct sunlight, and other radiation effects. The chamber conditions are controlled at 23 °C with a permitted variation of ±3 °C and 50 % relative humidity with a permitted variation of ±10 %.

A DUT with manual operation mode is tested in maximum performance operation mode, following the manufacturer’s instructions. That means the unit is set to its highest flow rate with all air-cleaning functions switched on where applicable, so the test reflects peak cleaning performance rather than user-selected lower settings.

Test power, sampling plan, and instrumentation

For AC-powered DUT, the test voltage and frequency follow the intended country or region, using IEC 62301 Table 3 where applicable. For DC-powered DUT, the manufacturer’s rated voltage is used and held within ±1 % during the test.

The standard describes a single-test method, but repeated tests may be used to increase statistical confidence. If replaceable filters may be harmed by repeated testing, they should be replaced between runs. To compare units of the same model, at least three samples should be tested.

Measurement instruments must be calibrated and maintained to the manufacturer’s specification. The document also sets accuracy requirements for the thermometer, hygrometer, timer, CO detector, and the power supply arrangement, so the measurements are stable enough to support comparable results.

Test chambers and device placement

The document defines two test chamber options and gives detailed construction rules for surfaces, sealing, injection and sampling points, mixing fans, recirculation fans, and leakage rate. One chamber is intended for standard testing, and a larger chamber is available when high CADR values make the decay curve too steep in the smaller chamber.

The DUT is placed in the center of the chamber, with the position depending on product type. Floor units go directly on the floor, table units go on a 0.7 m table, wall units use the Annex C test stand, robotic units are tested in a defined square area, and direct plug-in units also use the Annex C stand. If the manufacturer does not specify placement, the height of the unit determines whether it is treated as a table or floor appliance.

Air exchange rate, noise, and energy efficiency

Clause 6 uses carbon dioxide (CO2) as a tracer gas to determine the air exchange rate of the test chamber. The procedure covers sampling point placement, chamber conditioning, tracer gas introduction, decay recording, and calculation of the decay constant. In practice, this verifies that the chamber is tight enough and behaves predictably before performance testing starts.

Clause 7 sends noise measurement to IEC 60704-2-19. Clause 8 defines energy efficiency in maximum performance operation mode as CADR divided by input power, and standby power is measured in accordance with IEC 62301. For users, this means the standard supports both cleaning-performance claims and the power-consumption figures often used in product comparison.

What terms does prEN IEC 63086-1:2026 define?

• Air cleaner - an electrically powered household or similar appliance that uses one or more technologies to reduce indoor air pollutants.
• Robotic air cleaner - an air cleaner that moves and changes position autonomously without user intervention.
• Combination products - an air cleaner that includes another function in the same housing, such as humidifying, dehumidifying, heating, or air conditioning.
• DUT (device under test) - the air cleaner being examined in the test.
• Test chamber - a self-contained room with defined volume, shape, and dimensions used to measure DUT performance.
• CADR (clean air delivery rate) - the effective flow rate of cleaned air delivered by the DUT for the test pollutant.
• Maximum performance operation mode - the manual mode used for testing at the highest flow rate with all air-cleaning functions active where applicable.

Who uses prEN IEC 63086-1:2026?

Manufacturers use prEN IEC 63086-1:2026 when designing products and preparing performance claims for household and similar air cleaners. Test laboratories use it to set up chambers, place the DUT, run the decay test, and report CADR, noise, and energy efficiency in a consistent way.

Quality managers and certification teams use it to compare models, verify reported performance, and prepare formal reports. Buyers and technical specifiers can use it to understand what kind of test method sits behind a performance claim and whether different products were measured on the same basis.

Which standards are used with prEN IEC 63086-1:2026?

• IEC 62301 - provides the method for measuring standby power and also supplies AC power supply and power meter requirements used in this document.
• IEC 60704-2-19 - provides the airborne acoustical noise test code used for noise measurement.
• IEC 63086-2 (all parts) - supplies the detailed performance test methods referred to for automatic operation mode, chamber selection, and input power measurement.

What does the prEN IEC 63086-1:2026 document contain?

prEN IEC 63086-1:2026 contains the main measurement framework plus the supporting structures needed to run it. Table 1 defines the two chamber configurations, Figure 1 shows the chamber layout, and Figure C.1 shows the wall and direct plug-in test stand.

The annexes add a chamber mixing check, standardized calculation rules, and construction details for special mounting cases. The document also includes the formulas used for tracer-gas decay, mixing level, and energy efficiency, together with rounding rules for reporting. This makes the standard useful both for laboratory testing and for preparing consistent certification or verification reports.

SLOVENSKI STANDARD
01-september-2026
Gospodinjski in podobni električni aparati za čiščenje zraka - Metode za merjenje
učinkovitost delovanja - 1. del: Splošne zahteve
Household and similar electrical air cleaning appliances - Methods for measuring the
performance - Part 1: General requirements
Elektrische Luftreiniger für den Hausgebrauch und ähnliche Zwecke – Messung der
Gebrauchseigenschaften - Teil 1: Allgemeine Anforderungen
Appareils d'épuration d'air électriques domestiques et appareils similaires - Méthodes de
mesure de l’aptitude à la fonction - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: prEN IEC 63086-1:2026
ICS:
23.120 Zračniki. Vetrniki. Klimatske Ventilators. Fans. Air-
naprave conditioners
97.030 Električni aparati za dom na Domestic electrical
splošno appliances in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

59N/97/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 63086-1 ED2
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-06-19 2026-09-11
SUPERSEDES DOCUMENTS:
59N/77/CD, 59N/96/CC
IEC SC 59N : ELECTRICAL AIR CLEANERS FOR HOUSEHOLD AND SIMILAR PURPOSES
SECRETARIAT: SECRETARY:
United States of America Mr Wayne Morris
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 34
ASPECTS CONCERNED:
Energy Efficiency,Environment
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Household and similar electrical air cleaning appliances - Methods for measuring the performance -
Part 1: General requirements
PROPOSED STABILITY DATE: 2031
NOTE FROM TC/SC OFFICERS:
The 2nd Edition of 63086-1 was prepared by the Joint Maintenance Team 6 of IEC TC59, SC59N. This document
was prepared with the assistance of many members from ISO TC142 and should be a dual -logo standard. While
this document was submitted at each stage to ISO TC 146, there has been no contact from ISO TC 146 and no
input. All comments from ISO TC142 were reviewed and resolved, which also included individually inviting
members of ISO TC 142 to attend the meetings in which we reviewed the ISO comments.

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IEC CDV 63086-1 © IEC 2026
CONTENTS
Contact . 2
CONTENTS . 1
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions. 5
3.2 Abbreviated terms . 7
4 Classification . 7
4.1 Types of technologies used in air cleaners . 7
4.2 Areas of placement for air cleaners . 7
5 Conditions, instrumentation, and equipment for measurements . 8
5.1 Measurements and calculations . 8
5.2 General conditions . 8
5.2.1 Test chamber conditions . 8
5.2.2 DUT conditions . 8
5.3 Test voltage and frequency . 8
5.3.1 AC-powered DUT. 8
5.3.2 DC-powered DUT . 8
5.4 Sample plan . 8
5.5 Test instrumentation . 9
5.5.1 General . 9
5.5.2 Thermometer . 9
5.5.3 Hygrometer . 9
5.5.4 Timer . 9
5.5.5 Power supply . 9
5.5.6 CO detector . 9
5.6 Test chambers . 9
5.6.1 General . 9
5.6.2 Structure of the test chambers . 9
5.6.3 Schematic of the test chambers . 11
5.7 Placement of the DUT . 13
5.7.1 General placement of the DUT. 13
5.7.2 Placement of a floor type air cleaner . 13
5.7.3 Placement of a table type air cleaner . 13
5.7.4 Placement of a wall type air cleaner . 13
5.7.5 Placement of a robotic air cleaner . 13
5.7.6 Placement of a direct plug-in type air cleaner . 13
5.7.7 Placement of an air cleaner not specified . 13
6 Determination of the air exchange rate of the test chamber . 13
6.1 Tracer gas . 13
6.2 Setting the sampling point . 13
6.3 Test chamber conditioning . 13
6.4 Tracer gas introduction . 14
6.5 Initial concentration . 14
IEC CDV 63086-1 © IEC 2026
6.6 Data sampling . 14
6.7 Decay of tracer gas . 14
6.8 Calculation of the decay constant . 14
7 Measurement of noise . 15
8 Energy efficiency . 15
8.1 Energy efficiency in maximum performance operation mode . 15
8.2 Standby power . 15
Annex A (informative) Determination of the test chamber mixing level . 16
A.1 General . 16
A.2 Setting of the external flow . 16
A.3 Injection of CO . 16
A.4 Monitoring of the CO concentration . 16
A.5 Calculation of the mixing level . 16
Annex B (normative) Standardization of calculations . 18
B.1 Test pollutant concentration . 18
B.2 Slope of decay line . 18
B.3 CADR . 18
B.3.1 Tabulation and calculation . 18
B.3.2 Certification, verification or other formal reporting. 18
Annex C (normative) Test stand for wall and direct plug-in type air cleaners . 19
Bibliography . 20

Figure 1 – Schematic of the test chambers . 13
Figure C.1 – Construction requirements for test stand for wall and direct plug-in type
air cleaners . 19

Table 1 – Test chambers . 10

IEC CDV 63086-1 © IEC 2026
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
Household and similar electrical air cleaning appliances - Methods for
measuring the performance -
Part 1: General requirements
FOREWORD
a) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
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f) All users should ensure that they have the latest edition of this publication.
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h) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
i) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC [had/had not] received notice of (a) patent(s),
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represent the latest information, which may be obtained from the pat ent database available at
https://patents.iec.ch. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 63086-1 has been prepared by subcommittee 59N: Electrical air cleaners for household
and similar purposes, of IEC technical committee 59: Performance of household and similar
electrical appliances, in co-operation with ISO technical committees 142: Cleaning equipment
for air and other gases and 146, subcommittee 6: Indoor air.
It is published as a double logo International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
59N/XX/FDIS 59N/XX/RVD
IEC CDV 63086-1 © IEC 2026
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
In this standard, the following print types are used:
– terms defined in Clause 3: bold type.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/publications.
A list of all parts in the IEC 63086 series, published under the general title Household and
similar electrical air cleaning appliances - Methods for measuring the performance, can be
found on the IEC website.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
– reconfirmed,
– withdrawn, or
– revised.
IEC CDV 63086-1 © IEC 2026
1 Scope
This part of IEC 63086 applies to electrically powered household and similar air cleaners having
a rated input voltage
– up to and including 250 V for single-phase AC circuits;
– up to and including 480 V line-to-line for three-phase AC circuits;
– up to and including 48 V for DC circuits.
For combination products, this document is to be used to measure the performance of the
appliance at reducing the test pollutants .
This document is not applicable to:
– appliances intended exclusively for industrial purposes;
– appliances intended for use in medical treatment locations, such as surgical suites,
laboratories, medical treatment rooms;
– cooking fume extractors (see IEC 61591 [1]).
NOTE 1 See Clause 4 for examples of different technologies and placements of household and similar air cleaners.
NOTE 2 Battery-operated appliances are within the scope of this document. Dual-supply appliances, either mains-
supplied or battery-operated, are regarded as battery-operated appliances when operated in the battery mode.
NOTE 3 A cooking fume extractor and an air cleaner differ significantly in their main use. A cooking fume extractor
is designed to capture fumes close to the cooking surface in a kitchen environment. In the case of the cooking fume
extractor, the focus is on the direct capture of the cooking fumes (first yield capture rate), whereas in the case of air
cleaners, the focus is on general household air pollutant reduction.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 62301, Household electrical appliances - Measurement of standby power
IEC 60704-2-19, Household and similar electrical appliances - Test code for the determination
of airborne acoustical noise - Part 2-19: Particular requirements for air cleaners
3 Terms, definitions and abbreviated terms
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following
addresses:
– IEC Electropedia: available at https://www.electropedia.org/
– ISO Online browsing platform: available at https://www.iso.org/obp
3.1 Terms and definitions
3.1.1
air cleaner
electrically powered household, or similar, appliance that employs one or multiple technologies
to reduce one or more types of indoor air pollutants
IEC CDV 63086-1 © IEC 2026
3.1.2
robotic air cleaner
air cleaner (3.1.1) that operates and changes its physical location autonomously without user
intervention
Note 1 to entry: The robotic air cleaner (3.1.2) can consist of a part that houses the air cleaning function and can
have a docking station and/or other accessories to assist its operation.
3.1.3
fresh-air air cleaner
air cleaner (3.1.1) connected to the external environment, which provides pollutant-reduced
outdoor air into an indoor space
Note 1 to entry: The fresh-air air cleaner (3.1.3) can also include other auxiliary functions, such as heat exchange.
Note 2 to entry: The term "fresh" indicates in this context that the supplied outdoor air typically has a lower CO
content than the air in an occupied room. However, this does not imply that the supplied air is
...