Fog machines

Fog Machines for Stage, Club & Event – Overview

Whether you need a sweeping wall of dense fog for a theatre production, a fine atmospheric haze to make laser beams pop, or a carpet of ground fog rolling across a dance floor — LTT has the right fog machine for every application and every budget.

From compact 400 W battery-powered units for mobile shoots to 3100 W touring-grade foggers with DMX/RDM control, our range covers every power class and machine type. Brands such as Eurolite, Showtec, Antari, MagicFX and Smoke Factory sit alongside our own curated selection, all backed by expert advice and fast dispatch from Bocholt, Germany.

Find your optimum solution here and put your next event in the spotlight — from the first rehearsal to the final bow.

Types of Fog Machines: Fogger, Hazer, Fazer & Low-Fog

Not every fog machine works the same way, and choosing the wrong type is the most common mistake buyers make. Here is a clear breakdown:

Fogger (Vaporiser Fog Machine)

The classic fogger — also called a vaporiser fog machine — pumps water-based fluid into a heated element, vaporising it into a dense, visible cloud. Output is measured in m³/min; a 1200 W unit typically delivers around 350 m³/min, while a 1500 W machine pushes 560 m³/min or more. Foggers are the go-to choice for dramatic stage entrances, Halloween events, discos and concerts where visible density matters.

Hazer

A hazer produces a fine, almost transparent atmospheric haze rather than thick fog. Most hazers use glycol- or mineral-oil-based fluids, vaporised or atomised at lower temperatures. The result is a long-lasting, evenly distributed haze that makes light beams, moving heads and laser effects visible from every angle without obscuring the stage. Oil-based hazers operate silently and odour-neutrally, making them the standard choice for TV studios, large concerts and theatre productions. See our dedicated hazers category for the full range.

Fazer

A fazer combines a standard fogger with an integrated fan. The fan disperses the fog as it exits the nozzle, spreading it more quickly and evenly across a space. This makes fazers ideal for larger venues where you need rapid coverage without waiting for natural air movement. Browse our fazer range for current models.

Low-Fog / Ground-Fog Machines

Low-fog machines create a heavy, ground-hugging fog effect — the classic "dry ice" look. Traditional systems use dry ice blocks submerged in warm water. Modern alternatives use chiller-based cooling units or CO2 cooling to cool standard fog fluid output to near-floor temperature, producing the same effect without the logistics of sourcing dry ice. Chiller-based low-fog units are increasingly preferred in professional theatre and wedding productions for their repeatability and ease of use.

Choosing the Right Type

For laser shows and moving-head rigs, a hazer is almost always the better choice over a fogger — it provides the beam visibility you need without over-fogging the space and obscuring performers or audience sightlines. For dramatic entrances and dense atmospheric scenes, a fogger or fazer delivers the visual impact. For floor-level effects at weddings, theatre and corporate events, a low-fog or ground-fog machine creates the most elegant result.

How a Fog Machine Works

Understanding the mechanics behind a fog machine helps you choose the right unit and maintain it correctly.

In a standard vaporiser fog machine, a small pump draws fog fluid from the tank and forces it through a narrow heating element — typically a block of aluminium or brass with an internal channel. The element is pre-heated to between 180 °C and 300 °C depending on fluid type. As the fluid passes through, it vaporises instantly. When the hot aerosol exits the nozzle and meets cooler room air, it condenses into the fine water-droplet mist we perceive as fog.

The Fluid

Modern fog fluid is a mixture of distilled water and either propylene glycol or glycerin — the same base compounds used in theatrical smoke and electronic cigarettes. Distilled water is essential to prevent mineral deposits building up inside the heating element. The ratio of glycol or glycerin to water determines fog density and dwell time: higher glycol content produces denser, longer-lasting fog; higher water content gives a lighter, faster-dissipating haze.

The history of water-based fog fluid dates to 1973, when Günther Schaidt, working near Hamburg, developed the first water-based fog fluid and the machines to use it. He later received a Technical Academy Award (the so-called "Technik-Oscar") in Hollywood for this invention — a testament to how fundamentally it changed stage and film production worldwide.

Warm-Up Time

Before a fog machine can fire, the heating element must reach operating temperature. Entry-level and mid-range machines typically require 7–12 minutes of warm-up time. Professional units with larger heating blocks and higher wattage often reach temperature faster and recover more quickly between bursts. After each fog burst, the element needs a short re-heat cycle before it can fire again — shorter re-heat times are a key differentiator between budget and professional models.

Magnetic Valve (Instant Fog Stop)

Higher-quality fog machines include a magnetic solenoid valve at the nozzle. When the trigger is released, the valve closes immediately, cutting the fog output cleanly. Without this feature, residual fluid in the line continues to vaporise for a moment after the trigger is released, making precise cue-based control difficult.

Key Specifications: Wattage, Output Volume & Warm-Up Time

When comparing fog machines, three numbers matter most: heating power (watts), output volume (m³/min) and warm-up time (minutes). Here is how to read them for your application.

Heating Power (Wattage)

• 400–700 W: Compact and battery-powered units for small rooms, photo shoots, mobile DJs and film sets. Output is limited but sufficient for close-range effects.
• 1000–1200 W: The sweet spot for home parties, small clubs and rehearsal spaces. A 1200 W machine typically delivers around 350 m³/min — enough to fill a medium room quickly.
• 1500–1800 W: The professional entry point for clubs, live events and open-air stages. At 1500 W you can expect 560 m³/min or more, with faster re-heat cycles.
• 2600–3100 W: Touring-grade machines built for continuous use. Examples include the Smoke Factory Data II (2600 W) and the Smoke Factory Spock (3100 W), both featuring OLED displays, DMX/RDM interfaces and interchangeable nozzles for adjustable throw distance. These units are designed for rock-and-roll touring, large theatre productions and broadcast environments.

Output Volume

Output volume tells you how much fog the machine can produce per minute. For small venues up to 200 m², a machine producing 300–400 m³/min is typically sufficient. For clubs and mid-size stages (200–800 m²), aim for 500–700 m³/min. For large open-air stages or arenas, you will need multiple machines or units rated above 1000 m³/min. Outdoor use always demands higher output because wind disperses fog rapidly.

Sizing Guide: Output vs. Room Volume

A practical rule of thumb: to achieve a visible fog effect in a room, you need to replace roughly 10–15% of the room's air volume with fog per minute. For a 500 m³ club (roughly 200 m² floor area × 2.5 m ceiling height), a machine producing 500 m³/min will create a strong effect within seconds. Scale up proportionally for larger or outdoor spaces.

Warm-Up & Re-Heat Time

Professional machines warm up in 5–8 minutes and re-heat between bursts in under 30 seconds. Budget units may take 10–12 minutes to warm up and 60–90 seconds to re-heat. For show-critical applications where fog must fire on cue, invest in a machine with a short re-heat cycle and a magnetic valve for instant stop.

Control Options: DMX, Wireless Remote & Timer

How you control a fog machine is just as important as how much fog it produces. Modern fog machines offer several control methods, and the right choice depends on your production setup.

Wired Remote

The most basic control method: a push-button remote connected via a 6.3 mm or XLR cable. Simple and reliable for small venues where the operator is close to the machine. Many entry-level and mid-range foggers include a wired remote in the box.

Wireless Remote

A wireless (RF) remote lets you trigger the machine from anywhere in the venue without running a cable. Useful for mobile DJs, touring bands and situations where the machine is mounted out of reach. Range is typically 15–30 metres depending on the model.

Timer Remote

A timer remote lets you programme the interval between fog bursts and the duration of each burst. For example: fire for 3 seconds every 30 seconds. This is ideal for unattended operation — Halloween installations, trade show booths or continuous atmospheric effects during a set.

DMX-512 Control

For professional show integration, DMX-512 is the preferred control protocol. A DMX-enabled fog machine connects directly to your lighting console or DMX controller, allowing you to trigger fog bursts, adjust output intensity and synchronise effects with moving lights, strobes and other DMX devices — all from a single control surface.

DMX Integration on Truss Systems

One area where LTT stands apart from most competitors: we can advise on the full integration of fog machines into professional truss rigs. Mounting a fog machine on a Naxpro-Truss overhead rig using appropriate clamps and safety bonds, routing DMX and power cables cleanly along the truss, and addressing the unit correctly within a multi-universe DMX show — this is where our 25 years of event technology expertise makes a real difference. Ask our team about clamp and mounting solutions from our rigging and stage technology range.

RDM (Remote Device Management)

High-end fog machines increasingly support RDM, the bidirectional extension of DMX-512. RDM allows the lighting console to query the fog machine's status — fluid level, temperature, error codes — and adjust settings remotely without physically accessing the unit. This is invaluable for machines mounted high on a truss or in a ceiling recess.

Fog Fluid, Accessories & Maintenance

A fog machine is only as good as the fluid you put in it — and how well you maintain it.

Fog Fluid Types

All water-based fog fluids share the same basic formula: distilled water plus propylene glycol and/or glycerin. But the ratio varies significantly between products, and this directly affects performance:

• Standard / universal fluid: Balanced density and dwell time. Suitable for most foggers and fazers. Tank sizes typically range from 0.9 L to 5 L.
• Quick-dissipating fluid: Produces fog that disperses rapidly — ideal for applications where you want a burst effect without lingering haze, such as a dramatic entrance followed by a clear stage.
• Long-lasting / high-density fluid: Higher glycol or glycerin content for dense, slow-dissipating fog. Used in theatre and film where sustained atmospheric effects are required.
• Hazer fluid (oil-based): Specifically formulated for oil-based hazers. Never use water-based fog fluid in an oil-based hazer, or vice versa — doing so can damage the heating element and void the warranty.
• Scented fluid: Available in a range of fragrances for themed events. Use sparingly in enclosed venues and always check with the venue regarding sensitivities.

Critical rule: Always use only the fluid type approved by the fog machine's manufacturer. Using an incompatible fluid can cause overheating, residue build-up, damage to the heating element, and in the case of glycerin-based fluids heated above 200 °C, the formation of acrolein — a harmful compound. Quality machines include temperature regulation to prevent this, but using the correct fluid is the first line of defence.

Tank Capacity

Small units typically have 0.5–1 L tanks, sufficient for a few hours of intermittent use. Professional touring machines carry 3–5 L tanks, reducing the need for mid-show refills. Some high-end units support external fluid reservoirs for continuous operation.

Maintenance & Longevity

Regular maintenance is essential, especially for rental and touring equipment:

1. After each use: Run a small amount of cleaning fluid (manufacturer-approved) through the machine to flush residue from the heating element and nozzle.
2. Long-term storage: Empty the tank completely. Residual fluid left in the tank can thicken, clog the pump and corrode internal components.
3. Descaling: If you use tap water accidentally or notice reduced output, descale the heating element with a manufacturer-recommended descaling solution. Never use household descalers — they can damage seals.
4. Nozzle inspection: Check the nozzle for crystallised fluid deposits after every 10–15 hours of use. A partially blocked nozzle reduces output and can cause uneven fog distribution.
5. Storage: Store the machine in a dry, dust-free environment. Use a padded case or flight case for transport — the heating element is sensitive to physical shock.

Safety, Smoke Detectors & Venue Compliance

Using fog machines in professional venues requires awareness of safety regulations and practical precautions. Ignoring these can result in false fire alarms, evacuations and significant liability.

Smoke Detectors

Fog machine output can and does trigger optical smoke detectors — the aerosol particles scatter infrared light in exactly the same way smoke particles do. Before operating a fog machine in any venue, identify the type of fire detection system installed:

• Optical (scatter-light) detectors: Highly sensitive to fog machine output. Must be isolated or switched to test mode during operation.
• Heat detectors: Generally unaffected by fog, as the aerosol is at or near room temperature by the time it reaches the detector.
• Aspirating smoke detection (ASD) systems: Very sensitive — even low-density hazer output can trigger these systems.

In Germany and across the EU, temporarily isolating a fire detector requires coordination with the venue's fire safety officer and, in many cases, notification of the local fire brigade. Never simply tape over a detector — this is a fire safety violation.

Fire Brigade Training Use

Fog machines are widely used by fire brigades for training exercises, where artificial fog simulates smoke to create realistic visibility-impairment scenarios. Dedicated training foggers — such as high-output 1600 W units with robust metal housings and integrated timers — are available specifically for this application.

Ventilation

Adequate ventilation is essential when operating fog machines in enclosed spaces. While propylene glycol-based fog is considered safe at normal concentrations, prolonged exposure to high-density fog in an unventilated space can cause respiratory irritation. Always ensure air exchange is adequate for the venue size and the machine's output rate.

Approved Fluids & Health Compliance

Using only manufacturer-approved, certified fog fluids is not just a warranty requirement — it is a health and safety obligation. Certified fluids have been tested for toxicological safety at the temperatures produced by the machine they are designed for. Uncertified or substitute fluids may produce harmful by-products when vaporised. For professional and public events, always retain fluid safety data sheets (SDS) on site.

LTT – Your Specialist for Professional Event Technology

With over 25 years of experience in professional event technology, LTT is more than a retailer — we are a manufacturer, system integrator and trusted partner for event technicians, touring crews, theatre companies, clubs and B2B resellers across the UK, Ireland and beyond.

Our fog machine range brings together the best of what the market offers: from entry-level party foggers to touring-grade professional units from Eurolite, Showtec, Antari and Smoke Factory, all available with expert pre-sales advice. Every order benefits from our 3-year LTT warranty and free shipping on orders from €69, dispatched from our warehouse in Bocholt, Germany. Express delivery is available for urgent production needs, and we ship worldwide through our international dealer network.

Resellers and rental companies benefit from wholesale pricing — contact our team via LTT-Versand.de to discuss trade account conditions.

Round out your stage setup with our light effects and laser ranges — because fog without light is just weather. Together, they create the wow effect your audience will remember.

FAQ – Questions & Answers