First aid room requirements are one of the most misunderstood parts of UK workplace first aid law. Some employers assume every business over a certain size must have a dedicated medical room. Others assume the rules don't apply to them at all. The reality sits in between: whether you need a workplace first aid room depends on your first aid needs assessment, but once you provide one, specific legal standards apply to it.
Getting this wrong cuts both ways: too little provision leaves an injured employee waiting on a corridor floor, too much ties up space in a room nobody needs. This guide sets out what the Health and Safety (First-Aid) Regulations 1981 and HSE's guidance L74 say, when a room is expected, what it should contain and how to keep it compliant.
Is a first aid room a legal requirement?
Not for every workplace. There is no blanket legal duty to provide one. Regulation 3(1) of the 1981 Regulations requires employers to provide equipment and facilities that are "adequate and appropriate in the circumstances", and a first aid room is one facility that may be needed to meet that duty.
HSE's guidance, L74 First aid at work (third edition, reissued with amendments in 2024), puts it plainly: employers should provide a suitable first aid room or rooms where the assessment of first aid needs identifies this as necessary.
The law becomes specific once a room exists. Regulation 3(5) states that any first aid room provided must be:
- easily accessible to stretchers and to any other equipment needed to move casualties to and from the room
- signposted, with signs that comply with regulation 4 of the Health and Safety (Safety Signs and Signals) Regulations 1996
So your assessment decides whether you need a room, but the access and signage standards for it are legal requirements.
When do you need a workplace first aid room?
L74 says a first aid room will usually be necessary where there are higher hazards, such as in chemical industries or on large construction sites, and in larger premises at a distance from medical services.
HSE's needs assessment checklist (Table 1 in L74) lists a first aid room as something to consider in three situations:
- Higher-level hazards, such as chemicals or dangerous machinery
- Special hazards, such as hydrofluoric acid or work in confined spaces
- Large numbers of employees, which L74 defines as more than 25, even in low-hazard environments
Note the wording: HSE says you should consider a room, not that you must have one. A 30-person office five minutes from a hospital may reasonably decide a well-stocked first aid point is enough. A 300-person distribution centre on an out-of-town industrial estate is likely to reach a different answer.
Questions to ask in your first aid needs assessment
- What injuries are realistic, given your processes, machinery and substances?
- How long would an ambulance take to reach you, and where would the crew arrive?
- Would casualties need to lie down and wait in privacy, away from colleagues and the public?
- Are your premises spread across several buildings, or do you run shifts that need a fixed first aid base?
- Do contractors or members of the public visit in large numbers?
Record your reasoning either way. L74 doesn't require a written assessment, but a record lets you show an inspector how you reached your decision. Our step-by-step guide to workplace first aid risk assessments walks through the full process.
First aid room requirements for location, size and layout
Paragraph 49 of L74 sets out what a first aid room should provide. It should:
- be large enough to hold an examination or medical couch, with enough space at each side for people to work, plus a chair and any additional equipment
- have washable surfaces and adequate heating, ventilation and lighting
- be kept clean, tidy, accessible and available for use at all times when employees are at work
- be positioned as near as possible to a point of access for transport to hospital
- display a notice on the door giving the names, locations and, where appropriate, telephone extensions of first aiders and how to contact them
Location deserves the most thought. A third-floor room reached through a narrow corridor and two sets of fire doors can fail the stretcher access test in Regulation 3(5) however well it is equipped. Ground floor rooms near a main entrance or loading bay usually work best, so walk the route with a stretcher before committing to a space.
First aid room equipment checklist
L74 lists typical examples of the equipment and facilities a first aid room may contain. Use this as your baseline first aid room checklist:
- a sink with hot and cold running water
- drinking water with disposable cups
- soap and paper towels
- a store for first aid materials, such as a wall-mounted first aid cabinet
- foot-operated refuse containers lined with clinical waste bags, or another container suitable for the safe disposal of clinical waste
- an examination or medical couch with waterproof protection and clean pillows and blankets (a paper couch roll changed between casualties is acceptable)
- a chair
- a telephone or other communication equipment
- a record book for incidents attended by a first aider or appointed person
Two points stand out. The first aid record book is not the same as the statutory accident book, although L74 says the two can be combined. And your needs assessment may add to the list: L74 notes that specialist equipment, such as calcium gluconate for hydrofluoric acid burns, can be kept in the first aid room with access restricted to trained people.
Do you still need first aid kits if you have a first aid room?
Yes. A first aid room supplements your kits, it doesn't replace them. Kits still need to be easily accessible wherever working conditions require them, and the room is a sensible place to hold the reserve stock L74 recommends keeping on site for restocking. Our guide to first aid kit storage requirements covers how to position and protect kits across your site.
First aid room sign and signposting rules
Signage is where many rooms fall short. Regulation 3(5) requires the room to be signposted in line with the Health and Safety (Safety Signs and Signals) Regulations 1996, and L74 says it should be identified by white lettering or symbols on a green background.
In practice, that means:
- a compliant first aid room sign on the door itself
- directional signs along the route from the main work areas, so anyone can find the room under pressure
- the door notice naming your first aiders and how to reach them, updated whenever staff change
Regulation 4 of the First-Aid Regulations also requires you to tell employees about your first aid arrangements, including the location of facilities. Cover the first aid room in inductions and on your first aid notices.
Can a first aid room be used for other purposes?
It can, with conditions. L74 says the room should be reserved exclusively for giving first aid if possible. Where that isn't practical, HSE expects employers to make sure first aid facilities can be made available quickly, considering whether:
- the activities usually carried out in the room can be stopped immediately in an emergency
- furniture and equipment can be moved easily and quickly out of the way
- first aid furnishings and equipment are stored so they can be made available quickly
A small meeting room can work on this basis. A busy storeroom or a room that is often locked will not, because the room must be available whenever employees are at work. If you are thinking of sharing the space with the rest facility for pregnant workers and nursing mothers required under Regulation 25(4) of the Workplace (Health, Safety and Welfare) Regulations 1992, plan for how both needs would be met if they arose at the same time.
Who should manage the first aid room?
L74 recommends a designated person supervises the room: keeping it clean and stocked, replacing used or expired items, maintaining the record book and arranging cover for absences.
Practical takeaways
- Use your first aid needs assessment to decide whether you need a room, and record your reasoning.
- Treat higher hazards, special hazards, more than 25 employees and distance from emergency services as triggers to consider one.
- If you provide a room, check stretcher access and fit green and white signs: both are legal requirements under Regulation 3(5).
- Equip it against the L74 list, plus anything your hazards call for, and keep kits available around the site.
- Appoint someone to supervise the room and keep the door notice and stock up to date.
Equip your first aid room with MedWare
Meeting first aid room requirements is mostly about planning, but the right supplies make the room work on the day it's needed. MedWare supplies BS 8599-1 workplace first aid kits, first aid cabinets, accident books and clinical waste sacks to businesses across the UK. Browse our first aid kits and supplies and storage and cabinets ranges, or open a trade account for volume pricing and a tailored supply plan across multiple sites.