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How Many Classes of First Aid Kits Are There?

| Melinda Christilaw

Understanding First Aid Kit Classes: A Complete Guide for Workplaces

Introduction to First Aid Kit Standards

Hello everyone! Let’s delve into a critical aspect of workplace safety—the first aid kit. You might already know that having a first aid kit is crucial, but did you know that not all first aid kits are created equal? Thanks to the standards set by the American National Standards Institute (ANSI), we have clear guidelines on what these kits should contain to effectively manage injuries in various work environments.

First aid kits are categorized into two main classes by ANSI to ensure that whether you’re in a cozy office or on a bustling construction site, there’s a kit that meets your needs. These kits are defined as Class A and Class B, each tailored to the level of risk associated with the workplace. Additionally, these kits come in several types based on their usability and resilience to environmental factors.

Breaking Down the Kit Classes

  • Class A First Aid Kits: Think of Class A kits as the basic kit suitable for most office environments or places where work hazards are minimal. They contain 19 essential items that are perfect for addressing minor injuries like cuts, scrapes, or mild burns – the typical mishaps that can happen in less hazardous settings.
  • Class B First Aid Kits: For workplaces where the risk of severe injuries is higher—think manufacturing plants, construction sites, or warehouses Class B kits are recommended. These kits are stocked with 21 different types of items, including those found in Class A kits but in greater quantities and with the addition of tools to manage more significant injuries like severe cuts or broken bones.

Types of First Aid Kits:

Beyond the classification into Class A and Class B, first aid kits also differ based on their intended use and the environment they are suited for:

  • Type I Kits are intended for stationary, indoor settings where they are not likely to be moved. Think of these as wall-mounted units in a break room or near the main office.
  • Type II Kits are portable, making them ideal for offices that may require the kit to be moved to the location of an injury.
  • Type III Kits are designed for both indoor and outdoor use. They are mountable and water-resistant, making them suitable for locations that may be subject to moisture or dust.
  • Type IV Kits are the most robust, designed for portability and harsh conditions. They are waterproof and meant to withstand impacts, suitable for industrial sites or mobile workplaces like construction sites.

The Role of the International Safety Equipment Association (ISEA)

The guidelines and standards for these first aid kits are published and periodically revised by the ISEA, in collaboration with safety professionals from various industries. This ensures that the standards remain relevant and effective in addressing the needs of modern workplaces. It’s important for employers to stay updated with these revisions to maintain compliance and ensure safety.

Compliance and Misconceptions

A common misconception is that specific industries require specialized kits that deviate from the ANSI/ISEA standards. While it’s true that different workplaces may have unique risks that necessitate additional supplies, the ANSI/ISEA standards provide a foundation that is applicable universally. Employers are responsible for assessing their specific workplace hazards and ensuring their first aid kits meet these needs.

Staying Updated and Compliant

It’s crucial for employers to not only provide the right type of first aid kit but also to keep it well-maintained. Regular checks should be made to replace used or expired items and to add supplies as new workplace hazards are identified. Failure to do so can not only result in fines from inspections by bodies like OSHA but can also put employees at serious risk.


Understanding the different classes and types of first aid kits is more than a regulatory requirement—it’s a fundamental part of protecting your team. At First Aid Supplies Online, we specialize in helping businesses like yours choose the right kits and keep them stocked and ready for any emergency. Need help or have questions about customizing your first aid kits? Feel free to contact us at 800-874-8767 or send an email to Let’s make safety a priority together!

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