konimeter

A konimeter is a device for measuring airborne dust concentration in which samples are obtained by sucking the air through a hole and allowing it to pass over a glass plate coated with grease on which the particles collect.

空気を穴から吸い込んで粒子が付着する油を塗ったガラス板の上を通過させることで試料を採取し、浮遊粉塵濃度を測定する装置