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5 Differences Between Mosquito Smoke and Water-Based Fogging
Not all fogging is the same.
In Malaysia, pest control professionals use either thermal fogging (smoke-based) or ULV fogging (water-based) depending on the situation.
Here are 5 key differences you should know—especially if you're managing properties in mosquito-prone areas.
1. Appearance: Smoke vs Mist
- Smoke Fogging (Thermal): Produces thick white or grey smoke.
- Water-Based Fogging (ULV): Releases a fine, nearly invisible mist.
This makes thermal fogging more visible and dramatic—often used outdoors to cover wide areas fast.

2. Ideal Usage Areas
- Smoke Fogging: Best for large outdoor areas such as parks, compounds, gardens, and perimeter walls.
- Water-Based Fogging: Ideal for semi-enclosed or indoor environments like schools, hostels, offices, or near sensitive equipment.
Choosing the right method ensures safety and effectiveness.

3. Machine Type and Temperature
- Thermal foggers heat the insecticide until it vaporizes and exits as smoke.
- ULV (Ultra-Low Volume) foggers use high pressure to spray cold mist without heat.
This affects both how deep the fog penetrates and how long it lingers.

4. Noise Level
- Smoke foggers are usually noisier due to the combustion engine.
- Water-based foggers are quieter and less disruptive, making them more suitable for residential neighborhoods or business premises during working hours.

5. Health & Environmental Impact
- Both methods are safe when performed by licensed professionals.
- However, water-based fogging is often preferred in sensitive areas due to lower air pollution and less odor.
Smoke fogging may cause temporary discomfort for those with respiratory issues if not used properly.


Which One Do You Need?
For mosquito control in Malaysia, both methods have their place.
The key is choosing the right method for the right area—something Pesco Pest Control helps clients with during every inspection.
Contact Pesco Pest Control Today
- Termite Inspection & Baiting
- Fogging Services
- Pre/Post-Construction Anti-Termite Treatment
- General Pest Control Services (Cockroach, Rat, Mosquito, Ants & More)
Location: 36,36-01, Jalan Kempas Utama 3/3, Taman Kempas Utama, 81200 Johor Bahru, Johor, Malaysia
Call/WhatsApp: +6012-800 7008 / +607-562 0256
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
Website: https://pesco.com.my
