[problem] pest planar filter harmful particles and rainwater intrusion not only can be prevented by the complex network structure to sandwich in a sandwich-like, moreover, is the cleaning and re-covering is possible and easy even amateur, yet complex network It provides the insect complex amide. An outer frame 1 of the outdoor side stretched the outside network 3 in Me by Bitogomu respectively A groove, and the inner frame 2 of the indoor side that stretched the internal network 4 and the two-ply that can be opened and closed A combination made, as can be held in sandwich across the planar filter -5 nonwoven or the like between the outer network 3 and the inner net 4, is provided with a combined holding device of the outer frame 1 and the inner frame 2 become Te. .BACKGROUND 1【課題】害虫ばかりでなく有害微粒子や雨水の侵入が面状フィルターをサンドイッチ状に挟む複合網構造により阻止でき、しかも、複合網でありながら素人でも洗浄や張り替えが可能且つ容易である防虫複合網戸を提供する。【解決手段】凹溝に対してそれぞれビートゴムによる押止めで外網3を張った室外側の外フレーム1と、内網4を張った室内側の内フレーム2とが開閉可能な二枚合わせとなる組合せであって、外網3と内網4との間に不織布等の面状フィルタ―5を挟んでサンドイッチ状に保持できるように、外フレーム1と内フレーム2との合せ保持装置を設けてなる。【選択図】図1
