We have a wide range of workplace first aid kits to suit all your needs. Use our guide below to help decide which first aid kit is best for you. If you have any further queries please contact one of our team at [email protected]. Low Hazard e.g shops, offices libraries etc. Less than 25 employees - small 25 - 100 employees - medium more than 100 employees - large (1 per 100). High Hazard e.g light engineering and assembly, food processing, warehouse, construction etc. less than 5 employees - small 5-25 employees - medium more than 25 employees - large (1 per 25).