Kitchen, bathroom exhaust passage Introduction residential kitchen and bathroom exhaust passage, for excluding the kitchen cooking activities or toilet smoke pipes aggregate products. Also known as flues, air ducts, exhaust Road residence. Residential flue residential kitchen, bathroom shared major components of the exhaust duct system. Sulphoaluminate cement is alkali-resistant glass fiber mesh folder or folders ordinary Portland cement reinforcing steel mesh and other prefabricated material together. Performance residential kitchen and bathroom exhaust passage using production lines, smooth surface, low coefficient of friction, low drag and with fire, water, environmental protection, non-toxic, anti-aging, corrosion-resistant, odorless, shock absorption silencer, no distortion, no crack, good volume stability, simple construction and long operating life and other advantages. Performance Item Index Fineness (1mm square empty sieve residue) ≤12% bond strength (MPa) ≥0.8 Compressive Strength (MPa) ≥6.0 flexural strength (MPa) ≥3.0 water retention (%) ≥93 initial setting Time (min) ≥40 Final setting time (min) ≤80 scope and application conditions can meet people on insulation, sound insulation, fireproof, waterproof, flexible interior partition and decorative functional requirements. Residential kitchen and bathroom exhaust channel has light weight, high strength, no distortion, good fire resistance, resistance to impact performance of flexible, easy to install, good insulation properties, easy to damage and so on. Widely used in residential buildings and public buildings kitchen and bathroom exhaust smoke. Solve the flue gas odor phenomenon string.