800.440.6374     Phone 360.835.7507


Chances are if you know what no-see-Ums are, you know they do not belong in your home, with these high quality screens you will no longer live with no see ums

When soils become moist and temperatures rise, these small mosquito relatives fly out of the wetlands, looking for a little sip of blood.  They can’t be seen, but they can be felt, with sharp biting pain whenever people are outside, especially at dawn and dusk.  Commonly referred to as no-see-ums.

The scientific name for the no-see-ums (a/k/a no-see-ums) is Ceratopogonidae, although  it has accumulated more common names, including sand flea, sand fly, biting midge and punky.
Biting midges can be a nuisance to anyone who spends time outdoors during early morning and evenings.   Even during the daytime on still, cloudy days they will readily inflict irritating, painful, bites.    For some, their feeding can cause long-lasting painful lesions on exposed skin.

Bite prevention is the preferred way of dealing with these pests. Your home can be protected with a special screening which is available to exclude these fliesMost biting midges can fly through a standard 18 x 16 or 16 x 16 mesh insect screen in V formation, Only so a much smaller opening  size (higher mesh count) is required to prevent entry.

Our No See Ums screen specifications are top quality, precision woven T-304 or Marine Grade T-316 Stainless Steel, not inferior materials Fiberglass, Plastic, Polyester or other synthetics that may require frequent replacement.  Stainless Steel no-see-um screening will last a lifetime in most applications when properly maintained. Due to the superior strength of stainless steel, smaller wire diameters allow superior open area (visibility) to synthetic materials.
The table below lists the most popular screens utilized to prevent entry of small flying insects such as aphids, gnats, no-see-ums or biting midges.  Select an opening slightly smaller than the pest you wish to exclude.
To access more detailed information on any of the specifications listed below click on the adjacent PDS link to access the printable Product Data Sheet.
Small Opening No See Ums Stainless Steel Insect Screen
Data  Sheet

Openings Per

Screen Opening

Wire Diameter


Open Area

T-304 T-316 Linear Inch





PDS PDS 22 x 22 Mesh 0.038"






PDS PDS 24 x 24 Mesh







PDS PDS 30 x 30 Mesh 0.027" 0.686 0.0065" 0.165 0.085 64.8%
PDS PDS 42 x 42 Mesh 0.018" 0.457 0.0055" 0.140 0.086 59.1%
Be sure to consider the "Open Area" as standard insect screen has a typical open area of 66%  As the open area is reduced a proportionate reduction of visibility and air flow through the screen will result.
Call  360.835.7507
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Screen Technology Group, Inc
33008 NE Washougal River Road, Washougal WA 98671 USA
Screen Technology Group, established in 1988 With our success built on providing a level of customer service that is second to none, competent technical assistance, quality materials at competitive prices, properly package every order, always ship promptly according to schedule.
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Last modified: October 17, 2016