Dry Powder Fire Extinguishers

The effectiveness of a dry powder fire extinguisher

Dry powder fire extinguishers work by smothering flames and interrupting the chemical reaction that feeds fire. The powder creates a barrier between the fuel and oxygen, stopping the fire from spreading. This makes them incredibly effective on multiple fire types, from burning paper and wood to flammable liquids and gases.

How do you choose the right size?

The size of a fire extinguisher depends on the area being protected and the level of fire risk. A 1kg extinguisher is suitable for small offices or vehicles, but a 6kg or 9kg extinguisher works better for larger spaces or higher-risk areas. Our range covers everything from compact 1kg models to heavy-duty 9kg extinguishers.

Where should dry powder extinguishers be placed?

Position your dry powder fire extinguisher near exit routes, but not so close that fire might block access. Mount them at a comfortable height, approximately 1.5 metres from the floor to the handle. Keep them visible and accessible, away from heat sources and moisture.

Do you need special maintenance?

Regular maintenance ensures your extinguisher is always ready for action. Check the pressure gauge monthly, inspect for damage, and arrange annual servicing by a qualified technician. Replace fire extinguishers that show signs of corrosion or damage immediately. If stored outside, steel powder extinguishers should be protected (for example, with cabinets) to protect them from corrosion.

Dry powder fire extinguisher limitations

Dry powder extinguishers aren't suitable for electrical fires over 1000 volts or Class F cooking oil fires. The powder can also create a mess and may damage sensitive equipment. Consider these factors when choosing your fire protection strategy. They are better for use outside or in wide open spaces due to visibility issues on discharge as well as the risk of inhalation which can cause health risks.

Are there alternatives to consider?

Foam extinguishers and water mist extinguishers work well for Class A and fires involving electrical equipment, and create less mess. Carbon dioxide extinguishers are suitable for electrical fires, leaving no residue. However, dry powder extinguishers remain the most versatile choice for mixed fire risks in locations with open space. For a detailed comparison of your options, see our guide on foam vs powder fire extinguishers.

Our dry powder fire extinguisher range features models from trusted manufacturers, all of which meet British Standards. You'll find everything from budget-friendly options to premium models with advanced features. Each extinguisher comes with clear instructions and safety information.

Ready to protect your premises? Explore our comprehensive range of powder fire extinguishers and discover the ideal solution for your specific fire safety requirements.

Frequently Asked Questions (FAQs)

Can you use a dry powder fire extinguisher indoors?

You can use a dry powder fire extinguisher indoors, but it's not recommended for most indoor spaces. The powder spreads quickly, reducing visibility and making it harder to escape. It can also cause respiratory problems and stomach irritation if inhaled. However, they're suitable for some indoor areas, such as boiler rooms, garages, and specific warehouses, where the benefits outweigh the risks.

Why are dry powder extinguishers better for outdoor use?

Dry powder extinguishers work effectively outdoors because they won't freeze, unlike water-based extinguishers. They're perfect for garage forecourts, open workshops, goods yards, and vehicles. The powder spreads effectively in open areas without creating the visibility and breathing problems you'd get in enclosed spaces. Plus, there's better ventilation outdoors to disperse the powder after use.

What size dry powder fire extinguisher do you need for a van or lorry?

For vans and smaller commercial vehicles, a 1kg or 2kg dry powder extinguisher works well. Lorry cabs typically need a 2kg extinguisher, but larger commercial trucks often carry 6kg extinguishers. The slimline powder extinguishers with transport brackets are ideal for vehicles as they fit neatly and securely. Check your vehicle's specific requirements, as some industries have particular standards.

Do dry powder extinguishers need annual servicing?

Traditional dry powder extinguishers need annual servicing by a qualified technician. However, some models, like P50 Service-Free Fire Extinguishers, don't require yearly company servicing, which reduces your maintenance costs.

How do you clean up after using a dry powder extinguisher?

Cleaning up powder residue takes patience but isn't complicated. Sweep or vacuum up the bulk of the powder first, then wipe surfaces with a damp cloth. Don't use water immediately as it can create a paste. The powder is non-toxic but can irritate the skin and eyes; therefore, wear gloves and avoid inhaling dust. Soft furnishings are challenging to clean, which is why powder extinguishers are better suited for hard-surfaced areas.