Are Mosquito Coils Toxic? The Pure Alternative of Agarwood Incense

During seasonal transitions or prolonged humid spells, mosquitoes and insects become a persistent nuisance, particularly for families with infants or the elderly. Many turn to commercial mosquito coils or “herbal” repellent sticks, often marketed as “100% natural.” Yet, after burning these in a closed room, many report dizziness, stinging eyes, and chest tightness. Are these products truly safe, or is the smoke of pure Vietnamese agarwood incense the sustainable solution for a purified living space?

A Warning from Pharmacological Experts

“To paralyze or kill insects, a product must contain neurotoxic Pyrethroids or volatile chemical agents. If a stick can instantly kill mosquitoes in a closed room, the human lungs and cells inhaling that smoke throughout the night are inevitably absorbing cumulative, irreparable damage.”

1. The Truth About “Herbal” Mosquito Coils

Most mass-market mosquito coils contain alarming chemical additives:

Pyrethroid Chemicals (D-trans-allethrin, Prallethrin): Synthetic insecticides that mimic nature but carry high toxicity. When burned, they release neurotoxins that paralyze insects while causing headaches and bronchial irritation in humans.
Industrial Sawdust and Glues: To achieve low price points, manufacturers use low-grade wood dust bound with formaldehyde. Burning one coil for eight hours can emit PM2.5 levels equivalent to smoking 70 to 100 cigarettes.
S-2 Toxic Gas (Octachlorodipropyl ether): A synergistic agent banned in many nations due to its potential for lung damage and cellular mutation.

2. The Natural Defense of Phu Van Huong Agarwood

At the Thuong Dat artisan workshop in Hai Phong, Vietnam, we craft incense using traditional methods—slow-speed intermittent stone grinding and double heritage aging in Bat Trang ceramic vessels—to preserve the living essential oils of the agarwood.

Sesquiterpene Repellency: Natural Vietnamese agarwood contains organic compounds like Benzylacetone and Agarofuran. These emit a frequency that mosquitoes naturally avoid, allowing you to clear a room without toxic intervention.
Air Purification: Scientific studies confirm that pure agarwood smoke inhibits airborne pathogens, including Staphylococcus aureus and mold spores common in humid climates.
Warmth and Clarity: The smoke of our Antique Wild Agarwood (Tram Ruc) carries a “pure yang” energy, naturally drying the air and warming your living space.