Mist Maker Uses & Common Questions

Use an ultrasonic mist maker with a glycol/glycerin fog juice added to the water. Just a tablespoon or two of glycol per gallon of water is all it takes to create a dense white fog. If you add ice to the mix inside your water reservoir, it will chill the fog. The weight of the glycol, and the cold temperature weigh it down for thick, low-lying ground fog — and unlike glycol foggers, the effect never fades as long as the mister runs. Ideal for haunted houses, Halloween displays, and stage effects. A 12-Disc unit is a great starting point for an outside display, although smaller mist makers can be used for things like witches' cauldrons.

Yes — the National Weather Service built an indoor tornado demonstration with our 5-Disc mist maker. The fine, dry fog is perfect for vortex displays, science exhibits, and special effects. Our foggers even power the Montshire Museum's “Sea of Clouds” fog-table exhibit and the Chicago Science Center's giant indoor tornado, made using ultrasonic foggers.

Yes — customers build floating fog-screen projection setups with our mist makers for eye-catching 3D and holographic-style visuals. The dense, even dry fog makes an ideal projection surface. See the Fog Blog for builds.

Definitely. Artists and cosplayers use our ultrasonic foggers for atmospheric film fog, fake fire effects, and wearable effects — one customer even built a Ghost Rider costume with a flaming head using only ultrasonic mist and red LEDs. Check it out on our Instagram here.

Yes — that's the classic pond fogger use. Drop the unit in with the included float, plug it in, and fog settles inside the lip of the pond or fountain while air movement rolls it out. A 12-Disc suits large ponds; a couple of 3-Disc or 5-Disc units evenly cover a 20–25 sq ft fountain. If it's indoor with little airflow, you can get away with smaller foggers. Check out our special effects on our Instagram.

No — it simply sends ultrasonic vibration through the water to create fog, with nothing that harms the surface. If anyone will swim, lift the head onto the deck first, or at minimum run it on a GFI outlet for safety.

Fogponics feeds plant roots a nutrient-rich dry fog of sub-5-micron droplets, giving roots abundant oxygen and direct nutrient uptake. Run the mist maker outside the root zone (piped in with a low-speed fan), cycle it on a timer, and keep roots blanketed in fog. For full-term growing use a 9-Disc or 12-Disc; 1-Disc units are best for cloning. For the core basics, see our Mist Maker FAQ.

A 1-Disc for cloning, at least a 3-Disc for a 5-gallon bucket, and a 9-Disc or 12-Disc for full-term fog grows or larger tents — bigger is always better for full-term fog. Don't run the unit in the root zone (it adds heat and risks root rot); pipe the fog in instead.

Easily — a single-disc mist maker kit turns a cloner into a fog cloner. Use the water level to lift fog to the cuttings; you don't even need to cycle it, just watch your water temps and keep the cuttings damp. There's no faster way to root clones than fog.

Foggers pair beautifully with NFT, Shallow DWC, drip, and RDWC systems, or run as 100% fogponics. Fog delivers fine, oxygen-rich droplets with no nozzles to clog. Keep root and reservoir temps in check (a chiller helps on bigger systems) and push fog with as little air as possible so you don't dry the roots.

Use a clear, water-soluble fertilizer such as GH Flora Nova. A common starting point: around 400 PPM early, up to ~700 PPM after about 10 days, 800–1100 PPM in bloom, then drop below 400 the final week. Start light — fog uptake can be roughly 50% higher and more direct than other methods, so your plants and nutrient line will dictate the exact mix.

There's no better way to get clones going than fog. Run a 3-Disc or a single-disc fogger to root clones. Raise the water level of your tub to trap the fog in a small area at the base of the cuttings.

Yes — unlike heated humidifiers, a mist maker carries whatever is in the water (minerals, nutrients, anti-fungals) straight into the fog. That's exactly why it works so well for fogponics, greenhouse humidification, and sterilization. We recommend FloraNova fertilizer or something similar — clear and water-soluble is best.

It's easy and saves hundreds versus a Nutramist Cyclone (which uses the same technology as our units): take an airtight 5-gallon bucket and drill holes for a waterproof 80mm fan and an output hose.

Keep reservoir temps around 65–75°F (warmth helps seeds start, then becomes the enemy), keep roots fully blanketed in fog, and pipe fog in with cool, fresh air rather than running the unit in the root zone. A water chiller helps on larger systems.

Yes — the dry fog is ideal for greenhouses, raising humidity without soaking plants or equipment or causing mold. A huge share of our customers grow orchids (miltoniopsis, masdevallias, cloud-forest types), bonsai, and tropical nursery plants. Pair with a humidistat and waterproof fan for hands-off control.

It can help — customers report roughly a 10–12°F drop using a fogger, especially with a large reservoir like a 55-gallon drum (more water means cooler fog and steadier output). Add a humidistat for automatic control.

Yes — we're the largest supplier of commercial mist makers worldwide, working with university mycology departments, commercial nurseries, and large-scale fogponics operations. Tell us your space and goals and we'll size it right. Start with the full catalog.

For a large room like a 10×10 to a 20×20 mycology or fruiting room, a 9-Disc or 12-Disc with a waterproof fan kit pushes humidity up to the 85–95% mushrooms love. For large rooms, many growers run two units for redundancy. Our dry fog won't leave a slimy film on the caps the way some humidifiers do. See our main FAQ page for detailed sizing recommendations.

Use a mist maker kit, a waterproof fan, and an auto-fill float in a tote on a humidistat — it cycles to hold a steady 85–95% in the fruiting room. Check out our DIY humidifier article.

Cut a piece of HEPA filter material and place it between the fan and the blade guard, or use a 4-inch automotive cone filter — handy for both mushroom spores and dust. Our fan kits make this easy to rig.

Yes — the cool humidity is great for reptiles. Build a simple reptifogger with a small container and an 80mm fan on low. See our reptile & amphibian guide.

Absolutely — customers use 3-Disc units to keep chameleon and snake enclosures at proper humidity for healthy shedding. The dry fog is safe to use around animals.

Yes — pond foggers run safely in aquariums with fish and other creatures; the smaller units don't raise water temperature and simply create mist on the surface. 1-Disc and 3-Disc units work best for fish tanks. More fundamentals are covered in our main FAQ.

Yes — dart-frog breeders use our foggers for steady terrarium and vivarium humidity. A single-disc unit with an 80mm fan on the lowest setting whispers fog into the tanks; set it on a timer and forget it.

Yes — breeders hold around 85% humidity in feeder tents. If wing-dust or debris fouls the reservoir, add a fan filter between the fan and guard. See the fan kits.

Yes — one of the most popular uses, especially in dry winters. A 3 or 5-Disc unit is great for larger rooms; a 9-Disc or 12-Disc can humidify a standard house (goodbye scratchy eyes, bloody noses, and static shocks). Place it in a container with a fan to push the fog out into the room, near your HVAC intake. See our detailed FAQ for the essentials.

Yes — luthiers and studios use our foggers. Run a 12-Disc with a fan kit, auto-fill float, and humidistat for quiet, fully automated humidity. The only sound is gentle bubbling water.

Yes — cheese caves and curing chambers use our mist makers to hold humidity. One customer cures prosciutto with a single-disc unit and a 120mm fan in a DIY chamber.

Yes — our mist makers diffuse essential and aromatherapy oils using the same technology as small retail diffusers, but with far higher output and a much longer lifespan. Use oils sparingly; the thicker the oil-and-water mix, the lower the output.

Heavy oils raise the water's surface tension and reduce output. Add a plant-safe product called Coco-Wet to the water to restore performance.

Yes — the negatively charged mist binds positively charged dust and allergens so they get heavy and fall to the floor to be vacuumed up. One pet-store owner runs a 12-Disc with a 120mm fan to knock down dust and odor.

It depends on ambient humidity, target humidity, air exchange, and room construction (concrete absorbs moisture; high air exchange needs more power). Rough guide: a 4×6 tent with low air exchange → 1-Disc; a 10×10 room with A/C and lights → up to a 12-Disc; a 40-foot shipping container → a 12-Disc (or two units for redundancy); a ~1,000 sq ft home → a 9-Disc. Better to run a capable unit part-time than a small one 24/7. Our FAQ page covers the underlying basics too.

Output varies by model and conditions (water temp, dissolved solids, container size). Higher disc counts put out more fog — see our current comparison guide for ml/hr by model, and browse the full lineup.

Add a mist output controller to dial fog up and down, or a humidistat to hold humidity automatically within 3% of target. Use the 120mm waterproof fan for rooms and greenhouses, and the 80mm for tanks and grow tents. Full reference details live on our FAQ section, or in our DIY humidifier build.

Yes — we ship worldwide (popular in the UK, New Zealand, Australia, and the Netherlands). Our 230V units use two round pins that fit almost any universal travel adapter; international orders may be subject to customs charges.

We stock 120V and 230V units, and some customers have converted units for 12V/automobile use in DIY projects. Contact us for the latest options.

Yes — about 15 PPM is the lowest we recommend; near-distilled works as long as the unit keeps steady contact and doesn't stutter. With very clean RO the low-water sensor can get finicky — cut it with a little tap water and you're fine. Hard, high-calcium water can leave a fine dust, which RO water fixes. For the core basics, see our Mist Maker FAQ page.

Keep water under the 120°F maximum. Max run time is about 8 hours on / 1 hour off, but it depends on water volume — a 12-Disc in 100 gallons can run 24/7, while the same unit in 5 gallons should run only about 2 hours to avoid overheating. More water means longer safe run time. More fundamentals are covered in our Mist Maker FAQ.

The black low-water sensor must be nearly submerged; optimal operating depth is 60–80 ml above the discs, kept near the surface. The included float holds it at the right level.

Yes — about a 20:1 ratio once a week using 3% drugstore-strength peroxide. Our UV reservoir sterilizer (run about 3 hours/day on a timer) stretches cleaning intervals even further.

Yes — in cold environments, low water temperature reduces fog output. An aquarium heater can stabilize the water temperature and improve performance and reliability.

Pop the disc out with the included key, soak the discs in white vinegar for a few hours, and wipe clean. Our ceramic replacement discs resist buildup and last around 5,000 hours; water quality and upkeep change that number. See our main FAQ for the essentials.

Reduced output is almost always disc buildup — clean the ceramic discs, and if that doesn't work, replace them with our ceramic disc replacement pack.

The cheap units use low-output 16mm metal discs, and their LEDs promote algae and bio growth in the water — a recipe for problems with a humidifier. Ours use high-output ceramic discs and no LEDs (LEDs leak internally and cause failures).

If there's no water movement over the disc at all: first check the power supply — plug the transformer into a wall outlet by itself for 10–15 minutes; if the top gets warm it's working and the issue is the fogging transducer, but if it stays cool the fuse is likely blown or not seated. If the power supply works but there's still no fog, the transducer needs replacement. If there is some water movement, clean or replace the discs.

Fuse holders on the 5-Disc are finicky. Set the fogger in the water and slowly screw the fuse in until it makes connection and fog begins, then add just a quarter-turn. Don't over-tighten — that can crack the fuse holder.

Fountaining usually means moisture under the discs or solids buildup on the discs. Remove the discs and dry the spring area underneath with a hair dryer for a couple of minutes, then reinstall (often with fresh discs). Back pressure and shorts can damage the unit or reduce output, so troubleshoot it right away.

Check these in order: make sure the two-piece float is fully pressed together (a dislodged inner ring holds the unit too high); switch to regular tap water if you're on distilled or RO (sensors need dissolved solids); make sure all connections between the supply and transducer are tight; and avoid bleach for cleaning, which can damage the unit. If it still pulses, the water-level sensor/transducer may need replacing. Our main FAQ and support team can help.

No — letting water get behind a disc will destroy the unit. To reduce output, use our fog output controller instead.

Replace discs when you see reduced output, fountaining, or cracks. At the first sign of weak output, pop the discs out and dry the spring area underneath with a hair dryer for a few minutes; periodic preventive drying helps. Clean the discs by soaking them in vinegar and reinstall — if that doesn't fix the low output, replace them. It's always best to keep a set of replacement discs on hand.

The transformer is the black power supply that holds the fuse or red reset button. The transducer is the silver head that holds the white discs and actually creates the fog.

TuffCoat is an optional protective coating that helps repel mineral and solids buildup and prevents corrosion on your transducer when you run it in hard water or corrosive liquids. It also helps seal and prevent pinhole leaks that can develop over time, keeping the unit cleaner and protected. Learn more on our TuffCoat / anti-corrosion page.

Place the transducer in its black float and plug the transducer cord into the power supply. Drop the transducer and float into your water and it will start producing fog right away.

The 120mm fan moves about 115 CFM — right for larger enclosures like a 2×4×6 tent — while the 80mm suits smaller setups like reptile tanks and small grow tents.

Yes — multiple 120mm fans can share one power supply and controller using a standard cord splitter (available on Amazon) or by splicing the wires. It's a simple two-wire setup.

Use at least a 2-inch tube for small enclosures or tanks, and a 4-inch or larger tube for Martha tents or bigger setups. Fog travels like water, so wider tubing dramatically improves the transfer rate — there's an exponential jump going from 1 inch to 2 inches, so size up to 4 inches whenever you need full efficiency.

Floats should never hold water. If one is filling and sinking, it has a pinhole leak. To find it, coat the inner ring of the float with soapy water and squeeze it to push air through the hidden hole — the soap will bubble at the leak. Drill the hole out, empty the water inside, and seal it with caulk.

The float is two pieces — an inner ring and an outer shell. Grab it like a hamburger and press the inner ring up into the shell with your thumbs until it seats. If it isn't fully pressed together, it holds the unit too high and the water-level sensor sits out of the water.

Most aren't. Transformers are very durable and rarely fail (though the fuse holder can crack if over-tightened), and fogging transducers can't be repaired — if drying and fresh discs don't restore function, the transducer itself is what needs replacing. Contact us if you're within warranty, or replace the transducer here.

Most orders ship the same day; if not, within 1–2 business days via UPS or USPS ground.

Your order number or purchase email, a description of the problem, photos or video if relevant, and any troubleshooting you've already tried — that gets you the fastest, most accurate fix. Reach us through our contact page.

Not currently — though we're happy to help guide you! Building a humidifier is about a 30-minute job and it's easy. See our DIY humidifier build guide to get started.

Contact us right away with photos of the damage and we'll help make it right — reach us through our contact page.