Rangehood kitchen exhaust risers ought to NOT be linked to the ERV/ HRV as a result of grease buildup. There are add-on modules for the Panasonic fan that can e used as a substitute of continuousl working. Occupanc sensors and timers can e programmed to help handle humidit and insure long run durailit and good IAQ. The depth of penetration of a fibre into the lung relies upon mainly on its diameter, not its size. As a consequence, fibres so long as one hundred µm, have been found in the…See More