CA SIGMA COACHAIR

heating, ventilation, air conditioning, air filtration, and air purification equipment for road, rail, air, and water vehicles, and parts, fittings, and accessories therefor, namely, HVAC units, refrigeration air cooling apparatus, evaporative air cooling apparatus, air heating systems, humidifiers, dehumidifiers, air purifications units, and air cleaning units

installation, repair, and maintenance of air-conditioning, filtration, and air purification systems