VENTILATING FAN FOR AIR SUPPLY AND VENTILATION SYSTEM FOR HOUSING EQUIPPED WITH IT

摘要

PROBLEM TO BE SOLVED: To equalize the quantity of air blown out of each blowout port, in a ventilating fan for air supply equipped with plural blowout ports. SOLUTION: An air filter 60 is constituted of four pieces of block-form filters 61. The block-form filter 61 is made by stacking the first filter members in plate form and the second filter members in corrugated form alternately. The block-form filter 61 is stored in a grill part 50. Inside the grill part 50, each block-form filter 61 is arranged along the inner face of a peripheral flank 52 where a blowout port 53 opens. The outside air blown in the square-shaped air filter 60 is blown out of a house from the blowout port 53 after passing through the block-form filter 61.