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GB 18664-2025: Selection, use and maintenance of respiratory protective equipment
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GB 18664: Evolution and historical versions
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Basic data
| Standard ID | GB 18664-2025 (GB18664-2025) |
| Description (Translated English) | Selection, use and maintenance of respiratory protective equipment |
| Sector / Industry | National Standard |
| Classification of Chinese Standard | C73 |
| Classification of International Standard | 13.340.30 |
| Word Count Estimation | 74,774 |
| Date of Issue | 2025-08-29 |
| Date of Implementation | 2026-09-01 |
| Older Standard (superseded by this standard) | GB/T 18664-2002 |
| Issuing agency(ies) | State Administration for Market Regulation; Standardization Administration of China |
GB 18664-2025: Selection, use and maintenance of respiratory protective equipment
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GB18664-2025
ICS 13.340.30
CCSC73
National Standards of the People's Republic of China
Replaces GB/T 18664-2002
Selection, use and maintenance of respiratory protective equipment
Published on 2025-08-29
Implemented on 2026-09-01
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of Contents
Preface III
Introduction IV
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4.Selection of Respiratory Protective Equipment 6.
5.Use of respiratory protective equipment 14
6.Maintenance of Respiratory Protective Equipment 16
7.Respiratory Protection Program 16
8.Scrap and Replacement 17
Appendix A (Informative) Factors and Procedures for Hazardous Environmental Assessment 18
Appendix B (Informative) IDLH Concentration 19
Appendix C (Informative) Senseable Warnings of Toxic Gases and Vapors 37
Appendix D (Informative) Examples of Respiratory Protective Equipment Selection 38
Appendix E (Informative) Evaluation of the Ability to Use Respiratory Protective Equipment 42
Appendix F (Informative) Airtightness Test 43
Appendix G (Informative) Methods for Checking Respiratory Protection Programs 45
Appendix H (Informative) Suitability Test Method 47
References 67
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document replaces GB/T 18664-2002 "Selection, Use and Maintenance of Respiratory Protective Equipment". Compared with GB/T 18664-2002,
Apart from structural adjustments and editorial changes, the main technical changes are as follows.
a) Change "respiratory protective equipment" to "respiratory protective gear" or "respirator";
b) Some terms and definitions have been changed (see 3.1–3.10, 3.13, 3.15–3.18, 3.20, 3.21, 3.26, 3.32, 3.35,.2002 edition).
(3.1.1~3.1.13, 3.1.15~3.1.17, 3.1.20, 3.1.25)
c) Abbreviations have been removed (see 3.2 in the.2002 edition);
d) Increased the availability of half-face masks, full-face masks, disposable masks, replaceable masks, microorganisms, aerosols, hypoxia, and immediate threats to life or health.
Environmental protection, workplace protection factor, simulated workplace protection factor, electrostatic spraying, electrostatic powder coating, a total of 12 terms (see
3.7.1, 3.7.2, 3.7.3, 3.8, 3.13.4, 3.14, 3.16, 3.19, 3.28, 3.29, 3.31, 3.32);
e) The requirements for situations without protection have been changed (see 4.1.1, 4.1.1 in the.2002 edition);
f) The description of the control of chemical hazards has been revised (see 4.1.3, 4.2.2, and 4.1.3 and 4.2.2 in the.2002 edition);
g) The compliance requirements for respiratory protective equipment have been changed (see 4.1.4,.2002 version 4.1.4);
h) A method for determining the hazard level of air pollutants for which no occupational exposure limits have been established has been added [see 4.2.2e)];
i) The procedure for selecting respiratory protective equipment has been changed (see Figure 1, Figure 1 in the.2002 edition);
j) Added a selection method for respiratory protective equipment for air pollutants whose hazard factors cannot be calculated [see 4.2.3.2b)];
k) The APF values for respiratory protective equipment have been changed (see Table 2,.2002 edition);
l) The requirements for selecting respiratory protective equipment based on the type of air pollutant have been changed (see 4.2.4,.2002 version 4.2.4);
m) The content regarding the selection of respiratory protective equipment based on the type and severity of air pollutants has been revised (see Table 3, Table 3 in the.2002 edition);
(n) The requirements for selecting respiratory protective equipment based on operational conditions have been changed (see 4.3, 4.3 in the.2002 edition);
o) The requirements for selecting respiratory protective equipment based on the worker have been changed (see 4.4,.2002 version 4.4);
p) Added requirements for the use of respiratory protective equipment in high temperature, high humidity, and high temperature and high humidity environments (see 5.3);
q) The requirements for replacing filter elements in filtering respirators have been changed (see 5.4, 5.4 in the.2002 edition);
r) The use of supplied-air breathing protective equipment has been modified (see 5.5,.2002 edition 5.5);
s) The use of portable breathing apparatus has been increased (see 5.6);
t) The requirements for the maintenance of respiratory protective equipment have been changed (see Chapter 6, Chapter 6 of the.2002 edition);
u) Added the criteria for scrapping and replacement (see Chapter 8).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed and is under the jurisdiction of the Ministry of Emergency Management of the People's Republic of China.
The release history of this document and the document it replaces is as follows.
---First published in.2002 as GB/T 18664-2002;
---This is the first revision.
introduction
This document aims to provide employers with guidance on establishing and implementing respiratory protection plans, including the selection, use, and maintenance of respiratory protective equipment.
This document serves as the basis for our work. Assistance from respiratory protective equipment manufacturers, suppliers, and occupational health and safety professionals may be required when using this document.
Selection, use and maintenance of respiratory protective equipment
1.Scope
This document specifies the selection, use and maintenance of respiratory protective equipment, respiratory protection plans, and disposal and replacement.
This document applies to respiratory protective equipment used to prevent harm to the human body from workplace oxygen deficiency and/or air pollutants.
This document does not apply to respiratory protective equipment used in underwater operations, aviation, or medical rescue.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 3836.1 Explosive Atmospheres – Part 1.General Requirements for Equipment
GB/T 3836.2 Explosive atmospheres – Part 2.Equipment protected by flameproof enclosures “d”
GB/T 3836.4 Explosive atmospheres – Part 4.Equipment protected by intrinsic safety type “i”
GB/T 12903 Terminology for Personal Protective Equipment
GB 31975 Technical requirements for compressed air for respiratory protection
GBZ 2.1-2019 Occupational Exposure Limits for Hazardous Factors in the Workplace - Part 1.Chemical Hazardous Factors
3.Terms and Definitions
The terms and definitions defined in GB/T 12903 and the following terms and definitions apply to this document.
3.1
respirator
Personal protective equipment to protect against oxygen-deficient air and/or air pollutants from entering the respiratory tract.
3.2
air-purifying respirator
By using purification components to adsorb, absorb, catalyze, or filter harmful substances from ambient air, the purified air is then used for inhalation.
Respiratory protective equipment for sources.
3.2.1
Filter-type respiratory protective equipment that relies on the wearer's own breathing to overcome the airflow resistance of the components.
Note. This includes self-priming filter respirators for particulate matter and self-priming filter gas masks.
3.2.2
Powered air-purifying respirator (PAPR)
A filter-type respirator that uses an electric fan to provide airflow to overcome component resistance.