The higher the DEET%, the longer the
protection time.

Theoretically the effectiveness of a 20%
DEET product is the same as an 80% DEET
product, just not for as long.

Be wary of sub-20% DEET products.

Depending on the other ingredients in the
formulation, the protection time could be
short.

DEET has been proven, over 60 years of
use, to be a highly safe and effective
repellent against mosquitoes and other
biting insects.

Members of the Ceratopogonidae family are
better known as sandflies, noseeums,
no-see-ums, nicnics, midge, black flies and
black gnats, amongst others.

Unlike the mosquito, that uses a proboscis,
the above have biting, piercing and sucking
mouthparts to 'gnaw' their way to blood.

Of all the insects that bite humans these are
probably the most widespread and definitely
one of the most irritating.