What Are The Requirements For Ventilation?

What Are The Requirements For Ventilation? Rate of Supply of Fresh Air. Air movements or Air Changes. Temperature of Air. Humidity. Purity of Air. What is a legal requirement for a ventilation system? The Workplace (Health, Safety and Welfare) Regulations 1992 (Regulation 5) stipulates that mechanical ventilation systems, including air-conditioning systems, are regularly cleaned, tested

Which Direction Should Return Air Vents Face?

Which Direction Should Return Air Vents Face? The standard practice is to position these vents so that one can’t see through them to the ducting beyond. So, return vents closer to the ground should be oriented pointing downward. Conversely, return vents closer to the ceiling should be oriented pointing upward. Should cold air return vents