The outdoor air cooler selected brand revolves around a definition, the quality is assured, reliable and stable, and the service is fast. Just like buying air conditioners at home, well-known brands such as Beauty Pageant, Gree, Daikin, and Panasonic! The market for evaporative air coolers and cooling and ventilation units (energy-saving and environmentally friendly air conditioners) is now a mess. Prices, quality, and services are uneven. 
When customers outdoor air cooler factory choose the services of environmentally friendly air-conditioning companies, if they blindly compare prices, they will find a poor one. Engineering installation companies are not only hurting the industry, but also themselves!