What low fog looks like
Low fog is the effect people call dancing on a cloud. The fog rolls out across the floor and stays there, knee to waist high, while the air above it stays clear. Guests can still see your faces, the photographer can still shoot across the room, and the two of you look like you are standing in the sky.
On its own it is beautiful. With light it is something else. I aim the wash lights and beams so they hit the top of the cloud, which makes it glow and gives your photographer clean edge light on both of you. That is why low fog and lighting are planned together, not as separate add-ons.
When to use it
Most couples use low fog once, for the first dance, because it is the one moment every guest is watching. Other moments that work well are a parent dance, the grand entrance into the reception, and a slow song late in the night when you want one more big picture.
Low fog needs a few minutes of lead time, so it goes into the run of show like any other cue. As your host I am the one calling that cue, which is the advantage of one team running the microphone, the music and the effects: the fog is ready exactly when the song starts, not two minutes late.
Power: the part venues need to know
This is the technical detail that catches people out. Our low-fog machine draws up to 3,000 watts on 120 volts during its warm-up, about 26 amps. A standard wall outlet sits on a 20 amp circuit, so the fog machine cannot share an outlet with anything else and it cannot run off the same circuit as the lights or the sound.
So for low fog I ask the venue for one dedicated 30 amp circuit near the dance floor (a NEMA L5-30 outlet or the venue's equivalent). After the warm-up the heater cycles down, but the circuit has to be sized for the peak. I plan every wedding's power in advance and send the venue a short power plan listing each circuit and where it needs to be, so the electrician or coordinator can say yes or offer an alternative before the day, not during dinner.
- One dedicated 30 amp, 120 volt circuit for the fog machine
- Separate 20 amp circuits for sound and for lights, planned per room
- Written OK from the venue for fog, plus any detector rules
- Time to set up and test before guests walk in
Venue rules and safety
Every venue has its own rules about fog, haze and anything that might affect a fire alarm. I never assume. Once you book, I ask your coordinator in writing whether low fog is allowed, where the nearest suitable power is, and whether they want a test or a detector plan. If a venue says no, I tell you right away and we plan a different moment, for example a spotlight and beams for the first dance.
On the night, the fog stays on the dance floor and someone from my team runs the machine. We keep cables taped and out of walkways and we test the effect before guests arrive.
Cold sparklers/Uplighting and dance floor lighting/The 2027 package with low fog
