Abstract: A novel Fine-Particles-Removing Device (FPRD) is disclosed. The FPRD can be used removing fine particles from a flow of gas. Some embodiments of the FPRD can comprise a housing having a peripheral wall, upper and lower extremities wherein the housing comprises at least one inlet opening for receiving the gaseous stream and an inner-ring having a plurality of gaps. The housing can be associated with outlet means for removing of solid contaminants from the housing into a collecting receptacle for collecting the removed solid contaminants from the outlet means. In addition a pressure-manipulating-device (PMD) can be placed between the outlet means and the collecting receptacle.

Abstract: Disclosed is pesticidal particulate composition of matter, the particles comprising active substances, which react upon contact inside a pest body, the reaction generating a gaseous product and/or heat which destroy the pest. Pesticidal preparations, methods and kits are also disclosed.

Abstract: Disclosed is pesticidal particulate composition of matter, the particles comprising active substances, which react upon contact inside a pest body, the reaction generating a gaseous product and/or heat which destroy the pest. Pesticidal preparations, methods and kits are also disclosed.