Get to know the label
Buy from a licensed retailer and check for the CE or UKCA mark. Products that look similar can need different setups and distances. Read and follow the instructions supplied with each firework.
Find the category
F1 fireworks present a very low hazard, but are not automatically suitable indoors. F2 fireworks are for outdoor use in confined areas; F3 fireworks need large open outdoor areas. The category helps you choose for your space, but the specific product instructions determine its setup and safety distances.
Check the distance
Choose products that fit your space: F2 requires at least 8m (although some manufacturers recommend more, so check the label); F3 requires at least 25m. Safety distances are important, so follow them.
Read the full instructions
Identify the lighting fuse, any securing requirements and the specific instructions for a misfire.