Combining PPE: What Works and What Doesn't?

In many work environments, a single item of personal protective equipment (PPE) is simply not enough. Consider tasks such as grinding, drilling, spraying, decontamination, welding, working with (bio)chemical substances, or working in noisy areas. In such cases, combinations quickly come into play: a hard hat with hearing protection, a half-face respirator with safety goggles, or a welding helmet combined with respiratory protection. In practice, this is where things often go wrong—not because people choose the “wrong PPE,” but because the combination of items can negatively affect each other’s effectiveness.

It’s important to keep this in mind right away: In the Netherlands, PPE is a legal requirement within the broader framework of the Working Conditions Act and the Working Conditions Decree (including obligations regarding risk management and the provision/use of PPE). 

In this article, we explain why combining PPE is necessary, which combinations usually work well, which combinations are risky, and, most importantly, how to assess compatibility in practice. In doing so, we link everyday practice to the principles of occupational health and safety legislation: PPE must be appropriate, effectively reduce risk, and, when used together, not introduce new risks. In addition, PPE in the EU must comply with the PPE Regulation (EU) 2016/425 (CE marking and essential safety and health requirements). 

Why combine PPE?

PPE is intended as the final step in an occupational health and safety strategy. First, you address risks at the source (elimination, substitution, isolation, ventilation, organizational measures), and only then do you use PPE.

In the construction industry, you may simultaneously be exposed to falling objects (head protection), dust (respiratory protection), flying particles (eye protection), and noise (hearing protection). In industrial settings, an operator may need to protect against cuts, chemical splashes, and static discharge all at once. And in healthcare and cleanroom environments, the combination of infection prevention, splash risk, and respiratory protection comes into play.

The challenge is to cover all relevant risks without PPE items interfering with one another. A well-chosen set is comfortable to wear, fits properly, and is therefore actually worn. A poor combination pinches, leaks, restricts vision or hearing, or leads to people “taking it off for a moment”—with all the consequences that entails.

The basics: what needs to be in order before you start combining PPE?

Before evaluating combinations, the basics must be in order. These are the checks that make a difference in practice (and align with the obligation to identify risks and implement measures):

• Risk Assessment and Task Analysis (RI&E): What exactly are the hazards, how long do they last, with what intensity, and during which tasks? 

• Correct standards and performance classes: for example, safety glasses compliant with EN 166, face protection compliant with EN 170 or EN 172, hearing protection compliant with EN 352, respiratory protection compliant with EN 149 or EN 140, and helmets in accordance with EN 397 or EN 12492, depending on the application. Note: EN standards are not laws, but are used in practice to demonstrate that PPE meets the requirements of the EU PPE Regulation (CE/Conformity).

• Fit and sizing: “one size” rarely works for everyone. A combination is only safe if each component fits the wearer properly.

• Conditions of use: heat, moisture, sweating, physical exertion, and wearing eyeglasses affect comfort and the seal.

• Instruction and maintenance: Even a perfect combination can still fail due to incorrect donning sequence, contaminated seals, or expired filters. 

Which PPE combinations usually work well?

The combinations listed below are standard in many industries and can work very well, provided you ensure compatibility.

Eye protection and respiratory protection

In the presence of dust, mist, vapors, or splashes, this combination of eye protection and respiratory protection is very common. It is important that both pieces of equipment maintain their protective function:

• Check the seal: the nose bridge, cheeks, and the area around the mask are critical. Eyeglass arms or goggles that are too wide can compromise the seal of a half-face mask.

• Prevent fogging: fogged lenses lead to unsafe behavior. Whenever possible, opt for an anti-fog coating, indirect ventilation for goggles, or a respirator with an exhalation valve (provided it is appropriate for the risks and hygiene requirements).

• Consider integrated solutions: a full-face mask combines eye and respiratory protection into a single system and prevents many compatibility issues, provided the correct filter type is selected.

Regulations & practical note: Respiratory protection is subject to PPE requirements (EU 2016/425) and must be selected correctly based on the level of exposure. If you work with hazardous substances, this should also be addressed in your Risk Assessment and Substance Policy. 

Hearing Protection and Hard Hat

In noisy environments with a risk of impact or blows, combining a hard hat with hearing protection makes sense. Many safety helmets have slots for attaching earmuffs, providing a stable and consistent fit.

• Choose the right attachment method: clip-on ear cups are usually more stable than a separate headband worn under the helmet, which can shift or cause pressure points.

• Pay attention to attenuation performance in practice: a high SNR isn’t always better. Overprotection can impair communication and perception. Aim for “sufficient attenuation” and realistic application.

• Check the pivot points and clamping force: too little clamping force causes leakage; too much clamping force leads to pressure resistance and the user removing the ear muffs.

Helmet, Safety Glasses, and Face Protection

When grinding, sawing, or dealing with splashing and the risk of flying debris, face protection is often required in addition to safety glasses. Safety glasses remain essential for protection against particles entering from below.

• Prevent interference: a face shield that presses against the glasses can cause them to shift or fog up.

• Check for sufficient space: especially with larger prescription glasses or over-the-glasses frames.

Gloves and Safety Shoes

This may seem like a “logical combination,” but the real benefit lies in selecting the right gear for each task.

• Match materials to the risk: cut-resistant is different from chemical-resistant. And chemical resistance says nothing about grip in wet conditions.

• Mobility and grip: gloves that are too thick make it difficult to work, causing people to start working “without” them more quickly.

• Prevent cross-contamination: In the food and healthcare sectors, a glove-changing protocol and hand hygiene are just as important as the gloves themselves.

Regulations & practical considerations: When dealing with chemical risks, the choice of gloves must be demonstrably based on the substance information (SDS/safety data sheet) and a resistance recommendation. 

Which combinations are risky or not recommended?

Problems usually arise from loss of seal, restricted vision or freedom of movement, or the introduction of new hazards. These are typical pitfalls.

Half-face mask and eyeglasses with temples

Goggle arms can disrupt the facial seal of a half-face mask. The result is leakage, which means the nominal protection factor is not achieved. Solutions may include: goggles with an elastic strap (without temples), a different mask model that fits better, or a full-face respirator if the risk warrants it.

Respiratory protection and unsuitable helmets or face protection

A visor, welding helmet, or helmet rim can push the mask upward or interfere with the strap lining. This is particularly noticeable when putting on or taking off the mask, bending over, or working above shoulder height. Also pay attention to the order of donning: some combinations only work if you first position the mask correctly and then put on the other PPE.

Hearing protection in combination with eyeglass frames, hats, or hoods

Anything that comes between the ear cushions and the head reduces attenuation. Thick frames, hoods, beanies, or even hair in an unfavorable position can create a leak. This is one of the most underestimated causes of the complaint, “I’m wearing hearing protection, but it’s still loud.”

Incorrect choice of gloves when handling chemicals

Not every glove is suitable for every substance. Latex, nitrile, neoprene, and butyl each have their own specific resistance properties. In addition, breakthrough time, permeation, and degradation play a role. A glove may still look “intact” yet already provide insufficient protection. Therefore, use the manufacturer’s chemical resistance chart and select gloves based on concentration, temperature, and duration of exposure. Also, always use the safety data sheet (SDS) as the basis for your choice.

Loose cords, open clothing, and combinations with rotating parts

Some PPE items include features that can get caught, such as neck cords, loose hoods, or improper face protection near rotating machinery. In these situations, it is crucial to also consider the risk of entanglement and adjust work procedures accordingly.

How do you test the compatibility of PPE in practice?

Compatibility isn’t something you test solely on paper. A CE marking or standard indicates that the product meets the requirements, but it doesn’t automatically mean that two products will function optimally together in your specific work environment. A practical approach consists of four steps.

1. Check specifications and compatibility options

Check whether manufacturers explicitly mention compatibility, such as helmets with attachment systems or goggles suitable for use with half-face masks. Pay attention to sizing, attachment points, and any restrictions in the instructions.

2. Conduct a trial with representative users

Have various employees try them on, including those with different face shapes and, if relevant, those who wear prescription glasses. Check for:

• Pressure points and pinch points after 10 to 15 minutes of wear

• Full field of vision and no hindrance during movement

• Stability when bending over, turning, and working overhead

• Communication and audibility of signals

3. Functional test: seal, cushioning, and fogging

For respiratory protection, a fit check is essential before every use, and for higher-risk situations, fit testing may be appropriate as part of the PPE policy. For hearing protection, a practical check is helpful: is it worn correctly, does it fit well, and is the attenuation sufficient without overprotection? For eye protection, fogging is a clear indicator that the combination will not work in the workplace.

Tip (assurance): Specify in your PPE procedure when to conduct an additional check (e.g., when using a new mask type, with beard growth, weight changes, or different eyeglasses). This aligns with the principle that PPE must be “appropriate” and “effective,” as assessed by the Labor Inspectorate during inspections.

4. Document and train on the correct donning sequence

A combination can only be consistently safe if everyone follows the same procedure. Therefore, document: which set corresponds to which task, how to put on the PPE, how to check the seal, and when to replace components such as filters, sweatbands, visors, and ear cushions.

Combining PPE by Sector: What Should You Pay Extra Attention To?

Construction and Infrastructure

Here you often see the “classic set”: helmet, safety glasses, hearing protection, and safety shoes. The challenges lie in the variations depending on the task: drilling into concrete requires a different approach than sawing, grinding, or working with quartz dust. When dust is a risk, the need for respiratory protection arises quickly, and compatibility with safety glasses and a helmet becomes crucial. Weather conditions also play a role: rain, cold, and sun lead to extra layers of clothing or hoods that can interfere with the effectiveness of hearing protection.

Industry and Maintenance

Maintenance work often combines mechanical risks with chemical agents and confined spaces. Examples include degreasing, cleaning, flanging, grinding, and working inside systems. Here, it’s important to look not only at individual PPE items but at the total solution: Are gloves still usable for precision assembly work? Does communication work with hearing protection? And does a mask maintain a good seal even when sweating?

Healthcare and Laboratories

In healthcare settings, hygiene, splash protection, and wear time are key factors. Eye protection and respiratory protection must be comfortable when worn together; otherwise, they’ll be removed during critical moments. Also pay attention to policies regarding exhalation valves and the use of specific types of masks depending on infection prevention requirements. In laboratories, the chemical compatibility of gloves and the proper changing and disposal of PPE are also critical factors.

Common mistakes with PPE combinations

• Relying on “it seems to fit”: even minimal leakage in respiratory protection can have a major impact on protection.

• Failing to account for wearers who use prescription glasses: they are often the first to feel short of breath or experience fogged-up lenses, which compromises proper use.

• Failure to follow the correct donning sequence: the wrong order can cause straps to twist, disrupt seals, and create pressure points.

• Insufficient maintenance: worn ear cushions, scratched visors, or dirty exhalation valves lead to a loss of performance.

• Lack of a task-specific PPE policy: a single “one-size-fits-all” set rarely works optimally. A limited number of standardized task-specific sets is preferable.

How to combine PPE effectively and safely: practical guidelines

1. Work task-specific: define which PPE set is required for each task or zone. Make it as simple as possible for the user.

2. Preferably choose system solutions: helmet platforms with integrated hearing protection and visors, or masks that are proven to be compatible with specific goggles.

3. Test with real users in realistic conditions: let employees move, lift, bend, and communicate. Comfort is not a luxury, but a prerequisite for compliance.

4. Ensure a proper fit: offer multiple sizes or models where necessary, especially for respiratory protection and gloves.

5. Train on use and inspection: teach employees how to perform a fit check, how to properly position ear muffs, and when a product needs to be replaced.

6. Plan maintenance and replacement: establish replacement intervals for filters, ear cushions, visors, and helmets. Contamination and wear reduce protection.

7. Seek advice in complex situations: When multiple risk factors are present (e.g., chemical, mechanical, and respiratory risks), it is advisable to consult a supplier or seek a specialized assessment.

Conclusion

Combining PPE is a daily reality in many sectors and is often necessary to cover all risks. At the same time, it is one of the main causes of a false sense of security: a combination may appear correct on paper (CE/standard), but in practice, protection can be compromised due to poor fit, leaks, fogging, insufficient cushioning, or discomfort during work.

The solution lies in a task-specific approach, selecting compatible systems, testing with actual users, and ensuring proper instruction, maintenance, and replacement. This ensures that PPE is not only available but also actually does what it’s supposed to do: keep employees safe and healthy while they work.