Non-metallic airlocks, namely, clean room for use in barrier control with removal of particles; installations for climate control and air conditioning for use in cabinets and cages for laboratory animals, namely, air conditioning installations; equipment for heating, ventilation, air conditioning and ambient air purifying, namely, HVAC units; systems for heating, ventilation and air conditioning, namely, HVAC units; ventilation installations and ventilation apparatus, namely, air-conditioning...