Is metofluthrin toxic to humans?

Author: Ms. Trisha Kohler DVM  |  Last update: Sunday, June 21, 2026

While metofluthrin is a moderately toxic pyrethroid insecticide, the packaging and presentation of the product, i.e. the polyethylene slow release matrix and the overall low toxicity, and risk of inhalation toxicity was considered to be low due to the formulation of the product.

What are the risks of metofluthrin?

Metofluthrin, like other pyrethroids, is neurotoxic in rats, rabbits, and dogs; both sexes were equally sensitive to metofluthrin. Clinical signs include tremor (all species), vomiting (dog only), and increased salivation (rats and dogs).

What does metofluthrin do to mosquitoes?

Metofluthrin reduces biting activity in Aedes aegypti through the confusion, knockdown, and subsequent kill of a mosquito. A geographical spread in dengue, chikungunya, and Zika viruses, increases intervention demands.

Is meperfluthrin harmful to humans?

Conclusions: Meperfluthrin causes airway mucosal damage and hypersensitivity. Lung CT and lung tidal function measurements can be used to monitor changes in the condition. Presently, there is a lack of specific detoxification drugs for meperfluthrin poisoning.

Are metofluthrin or allethrin safe?

Allethrin and metofluthrin are also toxic to some animals including birds, fish, bees and cats. Dill said that "though the potential for harm to humans is there, it's probably low," but he cautioned to use these devices in moderation and never indoors.

How Mosquito Repellents harmful to Humans?

Is it safe to eat near Thermacell?

Our tests have shown that the amount of ingredient deposited on surfaces near the Thermacell device is below what even sophisticated scientific instruments can measure, which is less than one billionth of a gram on one cm2.

What effect does allethrin have on humans?

► High exposure may cause headache, nausea and vomiting, dizziness, fatigue, muscle weakness, irritability, seizures, and a loss of consciousness.

Is it OK to inhale mosquito repellent?

It is generally considered nonpoisonous, but it can cause breathing problems if you breathe in large amounts.

Can you sleep with a mosquito repellent plug-in?

The short answer is 'yes'.

Is it bad to breathe mosquito coil smoke?

Also, the emission of formaldehyde from burning one coil can be as high as that released from burning 51 cigarettes. Furthermore, long-term exposure to mosquito coil smoke (MCS) might induce asthma and persistent wheeze in children.

Does thermacell use metofluthrin?

The Thermacell LIV Smart Mosquito System repellent cartridges use metofluthrin (5.5%) as the repellent active ingredient.

What do professionals use to keep mosquitoes away?

N,N-diethyl-3-methylbenzamide (DEET) remains the standard by which all other repellents are judged.

Is Thermacell safe for dogs?

A: Thermacell products are safe to use around people and pets as long as it is used as directed. Thermacell products are for outdoor use only.

Is Thermacell safe to be around?

Use Around Children

The science and data on our ingredients indicate that they should not be of concern, if used according to label instructions, for people or pets. Thermacell's extensive data is thoroughly reviewed by the US EPA and multiple other regulatory agencies around the world in the product approval process.

What insects does metofluthrin repel?

Metofluthrin is a pyrethroid used as an insect repellent. The vapors of metofluthrin are highly effective and capable of repelling up to 97% of mosquitoes in field tests.

What is the liquid in Thermacell?

Thermacell works. Period. Refills are prohibitively expensive. Basically a 5.5% Metofluthrin solution.

What are the side effects of plug in mosquito repellent?

However, they come with potential health risks that you should be aware of.
  • Respiratory Problems. ...
  • Skin Irritation. ...
  • Eye Irritation. ...
  • Headaches. ...
  • Nausea and Dizziness. ...
  • Allergies. ...
  • Environmental Pollution. ...
  • Harmful to Pets.

Why do I keep getting bitten by mosquitoes at night?

Most mosquitoes avoid direct sunlight, coming out at night to feed. This means you're far more likely to get bitten by those pesky bugs while you're asleep, but luckily there are a few things you can do to prevent them getting into your room in the first place.

Should you sleep with DEET on?

To avoid overexposure, be sure to remove DEET product before going to bed (shower or use a wash cloth to remove from skin).

Why is DEET banned in Europe?

DEET is a widely used repellent that deters pests by making it harder for them to smell humans. Despite being effective, it has faced controversy over potential health and environmental impacts, including skin irritation and toxicity concerns. Some countries have even banned DEET due to these risks.

What happens if you breathe too much insect repellent?

Many insecticides can cause poisoning after being swallowed, inhaled, or absorbed through the skin. Symptoms may include eye tearing, coughing, heart problems, and breathing difficulties. The diagnosis is based on symptoms, blood tests, and a description of events surrounding the poisoning.

What is the strongest mosquito repellent?

Shop by Brand
  • Wondercide.
  • Ranger Ready RepellentsRanger Ready Repellents.
  • Thermacell.
  • BugMD.
  • Murphy's Naturals.
  • Ben's.
  • Grand Tongo.
  • Sawyer Products.

What happens if you breathe in Thermacell?

Inhaling the contents may be harmful or fatal. Intentional misuse by deliberately concentrating and inhaling the contents may be harmful or fatal. If vapors are inhaled, remove person to fresh air. This product is toxic to fish and aquatic invertebrates.

Is allethrin safe to breathe?

Allethrin appears as a clear amber-colored viscous liquid. Insoluble and denser than water. Toxic by ingestion, inhalation, and skin absorption. A synthetic household insecticide that kills flies, mosquitoes, garden insects, etc.

Does Thermacell use allethrin?

Our products contain active ingredients that repel mosquitos and inactive ingredients that assist with their release into the air. Our fuel-powered repellent mats use allethrin as the repellent active ingredient.

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