When it comes to a strong chemical such as DEET, it’s best to avoid overexposure. So if you want to use DEET, skip the high concentrations. Opt for
7-to-10 percent if you only need a few hours of protection
. If you need all-day protection, look for 20-30 percent DEET, ideally in a time-release formulation.
Is 25 percent DEET enough?
For example, if you plan to do some gardening in the yard for only an hour or so, a product with 5 to 7 percent DEET should be enough.
For a longer, more intense outdoor experience like fishing or hiking, 25 to 30 percent is a better choice
[source: SE Johnson].
Does more DEET work better?
MYTH: The higher the percentage of DEET, the better protected you are. FACT:
The level of DEET in repellent only determines how long the protection lasts
. For example, OFF! ® FamilyCare Insect Repellent IV contains 7% DEET and repels mosquitoes for up to 2 hours, while OFF!
Is 15 percent DEET enough?
Deet. Many people assume that the more deet (N,N-diethyl-meta-toluamide) a product contains, the better. But our tests find that there’s no need to use higher concentrations;
products with 15 to 30 percent deet can provide long-lasting protection against mosquitoes and ticks
.
Is 40 DEET too much?
Also: Do not use a single product containing both sunscreen and DEET. Sunscreen needs to be reapplied often, while DEET should not be used more than once a day.
DEET concentrations higher than 30% are not more effective
and the chemical (which is absorbed through the skin) in high amounts can be toxic.
What percentage of DEET is safe?
Choose a repellent with
no more than 30 percent
concentration. Apply products containing DEET in an open area with good ventilation. Do not apply products containing DEET to broken or sunburned skin.
Should you shower after DEET?
Most pesticides use some sort of chemical that’s lethal to bugs. It may be DEET, oil of lemon eucalyptus or Picaridin. Regardless,
you need to wash it off afterward using plain soap and water
. It’s a chemical, after all.
Should I wash off DEET?
Apply DEET in a thin layer — just enough to cover your exposed skin. Avoid heavy application or oversaturation. Once you return indoors,
make sure you wash off the DEET with soap and water
. It’s especially important to do this if you plan to reapply the DEET later or the next day.
Do you need to shower after using DEET?
Usually, that means only once a day.
When you return indoors, shower or wash your skin with soap and water
. Wash clothing to remove any remaining DEET. When applying DEET to children, apply it first to your hands and then to their faces and skin.
Does DEET repel fleas?
Studies have found that DEET repels a wide range of bugs, including fleas
. In fact, DEET is known to be the most effective bug repellent out there.
How do mosquitoes find you?
Mosquitoes use many methods to locate us.
Mosquitoes are attracted to the carbon dioxide humans and other animals emit
. They also use their receptors and vision to pick up on other cues like body heat, perspiration and skin odor to find a potential host.
What are the side effects of DEET?
People that have left DEET products on their skin for extended periods of time have experienced
irritation, redness, a rash, and swelling
. People that have swallowed products containing DEET have experienced stomach upset, vomiting, and nausea. Very rarely, exposure to DEET has been associated with seizures in people.
Can you put DEET on your skin?
And
it’s quite safe
. The U.S. Environmental Protection Agency has approved DEET for use in people of all ages, including children. Some people experience rashes or irritated skin after using DEET, and it can irritate eyes if you spray it too close.
How long does 30 DEET last?
For example, a concentration of 30% will repel mosquitos and ticks for about
6-8 hours
, while a concentration of 100% will last 8-10 hours. The smell of DEET is highly offensive to mosquitos who avoid the scent.
How do you wear DEET?
Use just enough repellent to cover exposed skin and/or clothing
. After returning indoors, wash treated skin with soap and water. Wash treated clothing before wearing again. Do not spray directly on face; spray the repellent onto hands and then apply to face.
At what time of day are mosquitoes most active?
Mosquitoes are most active during
early morning hours
before the sun has fully come up and the air temperature isn’t as hot. Mosquitoes find daylight to be deadly, as direct daylight can dehydrate them.
Does DEET cause brain damage?
Bug sprays using DEET can cause brain cells to die after prolonged use
, according to new research. A study by Mohamed Abou-Donia of Duke University Medical Center in North Carolina has found behavioural changes and alterations to the brain in rats.
Can you spray 100 DEET on skin?
Be safe with DEET :
Do not breathe in, swallow, or get into the eyes (DEET is toxic if swallowed.)
Do not put repellent on wounds or broken skin
.
Is DEET toxic to humans?
DEET is a chemical that is used in most bug sprays. It repels insects by producing a smell that drives bugs away and makes your skin taste bad to critters. DEET is
not toxic to humans when used properly
.
How long does DEET last on clothing?
Concentrations of DEET range from
10 percent (for about two hours of protection) to 100 percent (up to 10 hours)
. Maximum protection is achieved at 30% DEET formulations—higher concentration levels simply make your protection last longer.
How much bug spray do I need?
Both of these insect repellents are effective against the types of biting and annoying bugs you may encounter. How Much Bug Spray Do You Need To Bring On Your Trip? The general rule we recommend is about
one bottle per person per week
. But it is good to have extra.
Can I sleep with bug spray?
Is it Ok to Sleep with Bug Spray On? Photo courtesy of Caleigh Waldman via the New York Times. Since most bug sprays are chemical, it’s good to wash it off when you go into your lake house. However,
if you fall asleep after a long day in the sun, you’re probably fine
.
Can bug spray make you tired?
Symptoms of overexposure to bug sprays can occur up to 12 hours later.
It can be mistaken for heatstroke or heat exhaustion with the following symptoms: Headache, fatigue, dizziness
. Loss of appetite, nausea, stomach cramps, diarrhea.
How long does bug spray stay in the air?
The odor of Raid stays in the air for
15-20 minutes
, when the room is ventilated. The ventilation is key to letting the Raid chemicals out!
Does DEET destroy clothes?
But there’s one thing DEET is likely bad for: your outerwear. According to the National Pesticide Information Center, DEET, a plasticizer,
can cause damage to other plastics, including synthetic or treated fabrics
. (It won’t damage natural fibers, like cotton or wool.)
