Hotbox Sulfume Sulphur Vaporiser for Powdery Mildew
Hotbox Sulfume Sulphur Vaporiser for Powdery Mildew
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Order by 3pm Mon–Thu for next-working-day delivery · FREE delivery over £50 · Free Wembley pickup
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Stop Mildew and Mites Before They Get a Foothold
The Hotbox Sulfume Sulphur Vaporiser heats sulphur on a thermostatically controlled hot-plate to the precise point where it vaporises, then releases that vapour slowly into the room. Because the temperature stays below combustion, no sulphur dioxide or other toxic combustion products are produced - only sulphur vapour. That vapour kills mould spores, inhibiting powdery mildew and botrytis, and is toxic to spider mites and other pests. Dosing is controlled: a consistent 2 gram dose over an 8 hour period, so nothing is wasted. Supplied with sulphur powder.
Key Benefits
- Thermostatic hot-plate vaporises rather than burns, so there is no sulphur dioxide
- Consistent 2 g dose over 8 hours for even coverage with no wastage
- Preventative against powdery mildew and botrytis, killing spores before colonies establish
- Knocks back spider mites and other common grow room pests
- Treats the whole room, reaching leaf undersides a sprayer never gets to
- Comes with sulphur powder, ready to run
Powdery Mildew Taking Hold in a Humid Room?
Mildew and botrytis thrive where humidity sits high and airflow is poor, and by the time white patches show on a fan leaf the spore load is already substantial. Spraying a dense canopy never reaches every surface, and wetting flowers late in bloom invites rot. Vaporised sulphur settles across every leaf on its own, which is why growers run the Sulfume as prevention rather than rescue.
How to Use
- Position centrally, off the floor and clear of anything flammable
- Add sulphur powder to the dish - the unit meters out roughly 2 g over an 8 hour run
- Run during lights-off with the room sealed and extraction off, so vapour is not pulled straight out
- Ventilate before going back in, and keep people and pets out while it runs
- Repeat as prevention through veg and early bloom rather than waiting for infection
Technical Specifications
- Product type: Thermostatically controlled sulphur vaporiser
- Heating: Controlled hot-plate, vaporises without combustion
- Emissions: Sulphur vapour only, no sulphur dioxide
- Dose rate: 2 g of sulphur over 8 hours
- Targets: Powdery mildew, botrytis, spider mites and other grow room pests
- Supplied with: Sulphur powder
- Use: Grow rooms and grow tents, lights-off with extraction off

Free next-day delivery on orders over £50 (order by 3pm Mon–Thu). Heavy-item surcharges are always shown at checkout before you pay — we only ever charge what delivery costs us. Prefer to collect? Free pickup at our Wembley store.