Emergency equipment should be installed along the paths people travel most, close to the hazards it’s designed to address, and at heights that allow quick, unobstructed access. The exact placement depends on the type of equipment, but a consistent principle applies across all categories: seconds matter in an emergency, so every piece of safety gear needs to be reachable without navigating obstacles, climbing stairs, or searching unfamiliar areas.
Fire Extinguisher Placement
Fire extinguishers have some of the most specific distance rules of any emergency equipment. For ordinary combustible fires (paper, wood, cloth), OSHA requires that no employee travel more than 75 feet to reach an extinguisher. For flammable liquid fires involving grease, gasoline, or solvents, that distance drops to 50 feet. In commercial kitchens with deep fryers or similar cooking equipment, a Class K extinguisher must be within 30 feet of the cooking area.
The general rule is to mount extinguishers along normal paths of travel, near room exits, so someone can grab one while still having an escape route behind them. Placing an extinguisher in a back corner forces a person to move toward the fire and away from the exit, which is the opposite of what you want. Wall-mounted cabinets or brackets near doorways and hallways are the standard approach. Extinguishers should be clearly visible or marked with signage, especially in large warehouses or areas where shelving and equipment could block sightlines.
AED (Defibrillator) Placement
Automated external defibrillators save lives during sudden cardiac arrest, but only if someone can retrieve one fast enough. The American Heart Association recommends using a three-minute response time as the guideline for placement. That means a bystander should be able to recognize the emergency, walk to the nearest AED, and return to the victim’s side all within three to five minutes of collapse.
In practice, this translates to placing AEDs in high-traffic, centrally visible locations: building lobbies, near elevators, in hallways outside large meeting rooms or cafeterias, and at fitness centers or sports facilities. For multi-story buildings, at least one AED per floor is a common starting point. Large facilities like airports, convention centers, or college campuses often need multiple units per floor, spaced so that no area falls outside the three-minute retrieval window. Wall-mounted cabinets with clear signage work best because they’re visible from a distance and protect the device from damage.
Emergency Eyewash Stations and Showers
Anywhere workers handle corrosive chemicals, strong acids, caustic solutions, or biological hazards, emergency eyewash stations and drench showers need to be within 10 seconds of travel from the hazard. The ANSI Z358.1 standard, which most workplace safety programs follow, is very specific on this point: the path must be on the same level as the hazard, with no obstructions between the worker and the station. That means no doors that require a key, no stairways, and no cluttered aisles.
Ten seconds of walking at a normal pace covers roughly 55 feet, but because a person with a chemical splash in their eyes will not be moving at normal pace, keeping the distance shorter is better. Eyewash stations should be in well-lit areas with clear floor markings or signage. Drench showers are typically installed in the same zone, often combined into a single unit with an eyewash bowl below and a shower head above. Both need to be tested regularly to make sure the water flows properly and hasn’t stagnated in the pipes.
Emergency Lighting and Exit Signs
Emergency lighting guides people out of a building when the power fails. The International Building Code requires that the path from any occupied space to an exit be illuminated at an average of 1 foot-candle at floor level, with no spot dropping below 0.1 foot-candle. For context, 1 foot-candle is roughly the light from a single candle one foot away. It’s dim, but enough to see the floor and avoid tripping.
Exit signs must be placed so that at least one sign is visible from no more than 100 feet away at any point along the egress path. They’re required at every doorway leading to an exit route and at the exits themselves. In long corridors, additional signs are spaced to maintain that 100-foot visibility window. Emergency lighting systems must stay on for at least 90 minutes after a power failure, though illumination levels are allowed to decline to an average of 0.6 foot-candle by the end of that period.
Battery-backed lighting units are typically installed in stairwells, hallways, large open rooms, and near any change in floor level. Generator rooms themselves require brighter emergency lighting, at an average of 3 foot-candles, since personnel may need to operate equipment in those spaces during an outage.
Smoke and Carbon Monoxide Detectors
Smoke detectors belong on or near the ceiling because smoke rises. The NFPA recommends installing them inside every bedroom, outside each sleeping area, and on every level of a home or building, including basements. On flat ceilings, mount them away from walls, corners, windows, doors, and HVAC ducts, since air currents in those areas can pull smoke away from the sensor and delay detection.
For pitched or vaulted ceilings, install the detector within 3 feet of the peak but not in the very apex. The top 4 inches of a peaked ceiling can trap a pocket of dead air that actually prevents smoke from reaching the sensor. Carbon monoxide detectors follow similar placement logic: one on every level and near sleeping areas. Since carbon monoxide mixes with air rather than rising like smoke, these detectors don’t need to be ceiling-mounted, though many combination units are designed for ceiling installation anyway.
First Aid Kits
OSHA requires that adequate first aid supplies be “readily available” in any workplace that isn’t near a clinic or hospital. The regulation doesn’t specify a maximum distance in feet the way fire extinguisher rules do, but “readily available” is interpreted to mean a person can reach the kit quickly without leaving the general work area. In practice, first aid kits are placed in break rooms, near main entrances, on each floor of multi-story buildings, and in any area where injuries are more likely, such as workshops, loading docks, or production floors.
For large facilities, multiple kits distributed throughout the space make more sense than a single central kit. A good test: if an employee is bleeding, could a coworker retrieve the nearest kit and return in under two minutes? If the answer is no, you need another kit closer to that work area.
Height and Accessibility Requirements
All emergency equipment needs to be reachable by everyone who might need it. The ADA’s accessibility standards set the usable reach range at 15 inches minimum to 48 inches maximum from the floor when there’s no obstruction in front of the person. That 48-inch upper limit applies whether someone is reaching from the front or from the side. This covers fire extinguishers, pull stations, AED cabinets, first aid kits, and any emergency control that a person in a wheelchair or with limited mobility might need to operate.
Mounting a fire extinguisher at eye level for a standing adult might put it well above 48 inches, making it inaccessible from a seated position. Similarly, an AED cabinet placed too high on a wall could be out of reach. When planning installations, measure from the highest operable part of the equipment, not just the bottom of the cabinet. The path to every piece of emergency equipment also needs to be at least 36 inches wide and free of steps or raised thresholds that would block wheelchair access.
General Principles Across All Equipment
Regardless of the specific type, a few rules apply universally. Emergency equipment should be visible or clearly marked with standardized signage. It should never be locked behind doors, stored in closets, or blocked by furniture, inventory, or vehicles. The path to reach it should be the same path people already use, not a detour through an unfamiliar area. And all of it should be on the same level as the people and hazards it serves, because expecting someone to climb or descend stairs during an emergency adds dangerous delay.
Placement should also account for the specific hazards in each zone. A warehouse storing flammable liquids needs closer extinguisher spacing than an office with paper files. A chemistry lab needs eyewash stations that a carpeted office suite does not. Walk through each area, identify what could go wrong, and place the corresponding equipment along the shortest, clearest path between people and the response they’ll need.