Thermal Fogging for Malaria Control in India — Equipment and Operation Guide
By 100X Circle Pvt Ltd · 5 min read · Updated May 2026
Malaria is transmitted by Anopheles mosquitoes — predominantly nocturnal, rural, and breeding in natural water bodies. India accounts for approximately 70% of malaria cases in Southeast Asia. Thermal fogging is an adult mosquito control tool used alongside indoor residual spraying (IRS) in malaria control programmes.
Verdict: Depends on Your Use Case
Thermal fogging is effective for outdoor Anopheles control in peridomestic and forest fringe areas. IRS with residual insecticides is the primary method for indoor malaria control. Both approaches are used together in high-burden states like Odisha, Chhattisgarh, and northeastern India.
Side-by-Side Comparison
| Attribute | Thermal Fogging | Indoor Residual Spraying (IRS) |
|---|---|---|
| Target Mosquito | Anopheles (outdoor, peridomestic) | Anopheles (indoor resting) |
| Effective Area | Outdoor — peridomestic, forest fringe | Indoor — walls, ceilings, eaves |
| Chemical | Malathion, deltamethrin in oil | DDT, malathion, pyrethroids (residual) |
| Operation Timing | Dusk to dawn (Anopheles active period) | Before breeding season |
| Equipment | Thermal fogger (portable or vehicle-mounted) | Compression sprayer |
| Duration of Effect | Kills on contact; no residual | 2–3 months residual effect |
| Procurement | GeM from 100X Circle (MSME OEM) | Standard government supply |
Thermal Fogging — Key Strengths
- ✓Rapid knockdown of adult Anopheles outdoors
- ✓Effective for peridomestic and forest fringe areas
- ✓Emergency outbreak response tool
Indoor Residual Spraying (IRS) — Key Strengths
- ✓Residual effect — 2–3 months protection per application
- ✓Primary WHO-recommended method for indoor malaria control
Who Should Buy What
State health departments in high-malaria states (Odisha, Chhattisgarh, Jharkhand, Madhya Pradesh, Assam) conducting vector control operations. Portable foggers for forest area health workers; vehicle-mounted for peri-urban malaria zones.
Frequently Asked Questions
Is thermal fogging effective against Anopheles mosquitoes (malaria vectors)?
Yes. Thermal fogging with malathion (96% in carrier oil) or deltamethrin (1.25% in carrier oil) kills adult Anopheles mosquitoes on contact. However, Anopheles are nocturnal and predominantly outdoor — fogging is most effective during dusk-to-dawn hours in forested and peridomestic areas.
What chemical is used for malaria fogging in India?
Malathion (96% technical in carrier oil) is the most common chemical for malaria fogging in India. Deltamethrin and alpha-cypermethrin are also used in pyrethroid-based programmes. Formulations must be oil-based for thermal foggers.
Ready to Buy? Get a Quote from 100X Circle
100X Circle is India's leading OEM manufacturer of thermal fogging machines — ISO 9001 certified, GeM-listed MSME, supplying to municipalities and farmers since 2014.