What Causes Facet Syndrome? Facet syndrome is generally the result of the natural aging process. However, the initial cause of arthritis, or facet syndrome, may also be an injury or overuse of the joints in youth. Another possible cause of facet disease is spondylolisthesis, which is when one vertebra â usually in the lumbar spine â slips forward over the lower vertebrae. When the facet joints become inflamed due to injury or age, the result is stiffness and pain.
An energy recovery ventilator (ERV) is a type of mechanical equipment that features a heat exchanger combined with a ventilation system for providing controlled ventilation into a building.
Be advised, an energy recovery wheel purge section is a feature that will reduce carryover leakage. It will not guarantee zero leakage from the exhaust side to the supply side of the unit. Energy Recovery Wheels | Understanding Cross Contamination / Leakage. Also, do not use a purge section on every unit. If you are not concerned with carryover then donât use a purge (like in a typical school application).