Respiratory Protection RPE Safety Guide

Why Respiratory Protection Matters

Inhalation of harmful dusts and fumes can cause serious respiratory problems and long-term illness. Many workers underestimate the dangers associated with breathing in airborne contaminants during construction work.

Breathing harmful substances may lead to asthma, lung disease, cancer, breathing difficulties, and permanent respiratory damage.

Effective respiratory protection is essential whenever dusts, fumes, fibres, vapours, or airborne contaminants cannot be fully controlled by other methods.

Important Facts About Respiratory Ill Health

• In 2012 there were an estimated 179 new cases of occupational asthma directly linked to work activities, although the true figure may have been much higher.
• Approximately 5,000 people die every year from asbestos-related diseases after breathing airborne asbestos fibres.
• About 2.3 million working days each year are lost due to work-related ill health across all industries.
• At any given time, far more people are absent from work because of occupational ill health than because of workplace accidents.

These figures demonstrate the importance of controlling respiratory risks in the workplace.

Common Respiratory Hazards on Construction Sites

Construction work often creates harmful airborne substances that may affect workers and anyone nearby.

Common respiratory hazards include:

• Silica dust from cutting or grinding concrete and stone
• Wood dust
• Asbestos fibres
• Welding fumes
• Paint and solvent vapours
• Cement dust
• Diesel exhaust fumes
• Chemical vapours
• Smoke and combustion products

Health Effects of Dust and Fume Exposure

Occupational Asthma

Occupational asthma is asthma caused directly by workplace exposure to harmful substances. Symptoms may include wheezing, coughing, chest tightness, and breathing difficulties.

Lung Disease

Long-term exposure to harmful dusts and fumes may lead to chronic lung conditions, reduced lung function, or respiratory failure.

Cancer Risks

Some airborne substances, including asbestos fibres and silica dust, are known to increase the risk of cancer.

Skin and Eye Irritation

Airborne contaminants may also irritate the eyes, nose, throat, and skin.

Controlling Respiratory Risks

Use Engineering Controls First

Respiratory protective equipment should only be used when dust and fumes cannot be adequately controlled by engineering or mechanical methods.

Examples of engineering controls include:

• Dust extraction systems
• Local exhaust ventilation
• Collection systems
• Dampening down dusty materials
• Isolation or enclosure of work processes

Reduce Exposure for Others

Workers should also think about the safety of other people nearby. Dust and fumes can spread through the work area and expose others who are not directly involved in the task.

What Is Respiratory Protective Equipment (RPE)?

Respiratory protective equipment is equipment designed to reduce the amount of harmful dust, fumes, fibres, vapours, or gases breathed in by workers.

RPE must be suitable for the type and quantity of hazardous substance present.

Types of Respiratory Protective Equipment

Disposable Filtering Half Masks

Disposable face masks are commonly used for short-duration tasks involving dust exposure.

Half-Mask Respirators with Cartridges

Half-mask respirators use replaceable filters or cartridges designed for different types of contaminants.

Ventilated Visors and Helmet Respirators

Powered respirators and ventilated helmets provide higher levels of protection and may improve comfort during long-duration tasks.

Specialist Respiratory Equipment

Some high-risk tasks may require specialist breathing apparatus or advanced respiratory protection systems.

Selecting Suitable RPE

Correct Selection Is Essential

Selecting suitable respiratory protective equipment is extremely important. The chosen equipment must provide enough protection for the specific hazard.

Face Fit Is Critical

Personal face fit is a critical part of effective respiratory protection. Poor fitting masks may allow harmful contaminants to leak into the breathing zone.

Factors Affecting Face Fit

The following factors may affect how well RPE fits:

• Beards or facial hair
• Stubble
• Long hair not secured properly
• Prescription glasses
• Face shape

Workers who wear glasses or have facial hair may require alternative RPE solutions.

Correct Use of RPE

Wear RPE Whenever Required

Workers must wear respiratory protective equipment whenever it is required by the risk assessment or safe system of work.

Check Equipment Before Use

RPE should be checked before use to ensure it is clean, undamaged, and functioning correctly.

Maintain and Store Properly

Reusable respiratory protection should be cleaned, maintained, and stored correctly after use to ensure it remains effective.

Replace Filters and Disposable Masks

Filters, cartridges, and disposable masks should be replaced in accordance with manufacturer instructions or when breathing becomes difficult.

Employer Responsibilities

• Assess respiratory hazards in the workplace
• Use engineering controls wherever possible
• Provide suitable respiratory protective equipment
• Carry out face fit testing where required
• Provide training and instruction on RPE use
• Maintain and replace RPE equipment
• Monitor exposure levels
• Provide health surveillance where necessary

Employee Responsibilities

• Use RPE correctly whenever required
• Report defects or damage immediately
• Participate in training and instruction
• Inform the employer of medical conditions that may affect RPE use
• Maintain RPE in clean condition
• Store RPE correctly after use

Medical Conditions and RPE

Some medical conditions may affect a worker’s ability to safely use respiratory protective equipment.

Workers should inform their employer if they have conditions such as:

• Asthma
• Breathing difficulties
• Heart conditions
• Claustrophobia

RPE Questions for Toolbox Talks

• What should you consider for yourself and others when carrying out dusty work?
• What should you do if your face mask does not fit comfortably?
• If you wear prescription safety glasses, what should you do regarding your RPE?
• Why should engineering controls be used before RPE?
• What types of substances may require respiratory protection?
• Why is face fit testing important?

Conclusion

Breathing harmful dusts and fumes can lead to serious respiratory illness and long-term suffering. Construction work often creates airborne hazards that must be controlled properly.

Engineering controls such as extraction systems and dampening down should always be used first wherever possible. When these measures cannot fully eliminate exposure, suitable respiratory protective equipment must be provided and used correctly.

Employers must assess risks, select suitable RPE, provide face fit testing, training, and maintenance. Workers must wear respiratory protection correctly, report defects, and follow safe working procedures to protect both themselves and others from respiratory harm.