Guide to PPE

Two main factors determine hearing risk: loudness (decibels) and duration of exposure. Ear plugs and earmuffs reduce the amount of noise that reaches the ear and are available in different protection levels. The degree of noise reduction is called attenuation. OSHA provides a table (see G16) showing how much attenuation is needed in specific workplace situations. Because hearing damage is often permanent, choosing ear protection that meets or exceeds recommended attenuation levels is a critical part of any safety program.

Many serious hand and arm injuries can be prevented through engineering controls and safeguards. For example, guarding moving machine parts is often the most effective way to protect workers. When hazards cannot be fully eliminated, appropriate PPE is required. The most common PPE for hands are protective gloves.

Selecting the right glove requires a clear understanding of the specific hazards present. Different materials are designed to address different risks, such as extreme temperatures, abrasion, chemicals, sharp objects, and electrical hazards:

Leather gloves: protect against rough objects and moderate heat.

Fabric gloves: protect against wood splinters, abrasions, and chafing.

Aluminized gloves: provide insulation from intense heat or cold.

Butyl gloves: protect against many chemicals, including corrosive acids; not recommended for aliphatic hydrocarbons or halogenated solvents.

Latex gloves: protect against water-based solutions of acids, alkalis, and ketones.

Neoprene gloves: protect against hydraulic fluids, organic acids, and alcohols.

Nitrile gloves: protect against chlorinated solvents, acids, caustics, and many oils and greases.

Protective footwear can prevent serious foot and leg injuries. Hazards may include nails, sharp objects, electrical risks, molten metal, slippery surfaces, extreme temperatures, and rolling or falling objects. ANSI Z41 sets requirements for impact and compression resistance. All ANSI-approved safety footwear includes a protective toe cap.

Additional protection may be needed when hazards are more severe. Metatarsal guards help shield the instep, while external toe guards, shin guards, and leggings can protect the lower leg.

Electrical hazards require non-conductive shoes, which prevent the wearer from completing an electrical circuit. These shoes must not be used in areas with explosion risks. In explosive atmospheres, conductive footwear is used to help dissipate static electricity and reduce the chance of sparks. Workers exposed to electrical hazards must not wear conductive shoes.

Head protection is an essential safety consideration across many industries. Head injuries can cause severe, irreversible harm or death. Hard hats and safety helmets protect against impact, penetration, and in some cases electrical hazards. Each workplace should be evaluated to determine where:

1.      Loose objects could fall onto workers’ heads

2.      Stationary objects such as beams, pipes, or scaffolding pose an impact hazard

3.      Electrical hazards could contact the head

The first line of protection against head injuries is hard hats. But not all hard hats offer the same protection. Let's consider the three primary hard hat classes:

Class A: impact and penetration protection, plus electrical protection up to 2,200 volts.

Class B: impact and penetration protection, plus electrical protection up to 20,000 volts.

Class C: typically lightweight and designed primarily for impact protection.

All hard hats must meet or exceed ANSI Z89.1 performance requirements, provide effective impact absorption, and be replaced if they show signs of wear or after any significant impact, even if no damage is visible.

Dust, flying particles, gases, vapors, and light radiation are some of the most common hazards that require eye protection. Carpenters, electricians, pipefitters, mechanics, machinists, logging workers, and welders frequently need eye protection, but many other employees may be at risk, depending on the tasks and equipment in use.

Eye protection should be considered wherever particles or debris could enter the eye, where light radiation is present, or where liquid chemicals or solvents could splash. Common forms of protective eyewear include safety glasses, goggles, welding shields, and laser safety goggles. All protective eyewear must: