About 3 Trademarks found that are owned by Airmaster As

Ventilation grilles being parts of extractor fans; flues for ventilating apparatus; filters for use with apparatus for ventilating; apparatus and installations for ventilating

Ducts, not of metal, for ventilating and air-conditioning installations; non-metallic air pipes for buildings

lighting apparatus, namely, lighting installations; steam heating apparatus; cooking apparatus, namely, cooktops; refrigerating apparatus, namely, refrigerators; drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; ventilators for use with interior environment control systems for commercial buildings; water supply apparatus, namely, metered valves for regulating accessories for water supply; apparatus for sanitary purposes, namely, toilets; all the aforesaid goods not for use in the food processing industry, and not for use in food-processing or baking machines and installations, or for the ventilation hereof

light-emitting diode apparatus for lighting, incorporated into medical instruments; ventilating apparatus, namely, medical ventilators; all the aforesaid goods not for use in the food processing industry, and not for use in food-processing or baking machines and installations, or for the ventilation hereof

CITY VENTILATION