The fresh air system is an independent air handling system composed of a supply air system and an exhaust air system. It is divided into two types: ducted fresh air system and ductless fresh air system. The ducted fresh air system consists of a fresh air fan and duct fittings. The outdoor air is purified by the fresh air fan and introduced into the room, while the indoor air is discharged through ducts; The ductless fresh air system consists of fresh air fans, which purify the outdoor air and introduce it into the room. Relatively speaking, ducted fresh air systems are more suitable for industrial or large office areas due to their high power, while ductless fresh air systems are more suitable for household use due to their easy installation.

The combination of fresh air system and air conditioning is functionally non redundant when used together. Air conditioning regulates indoor temperature through cooling and heating, while the fresh air system utilizes the circulation of indoor and outdoor air to ensure indoor air quality. In terms of improving indoor space comfort, the two are complementary. Air conditioning utilizes its cooling and heating functions to keep the human body at a relatively comfortable temperature, while the fresh air system ensures the freshness of indoor air

The fresh air system is an open circulation system that provides fresh filtered outdoor air 24 hours a day, allowing people to breathe fresh, clean, and high-quality air indoors; The effectiveness of air purifiers is greatly affected by various factors, and their processing capacity rapidly decreases with the increase of indoor air pollution. Although they can adsorb some harmful substances such as dust, they cannot adsorb harmful molecules in the air. The quality of air that has been repeatedly treated is greatly compromised.

We will establish after-sales service records for each user, and company representatives and professional maintenance personnel will visit customers regularly or irregularly. Customer service personnel will conduct follow-up visits every 3-6 months to inquire about the use and opinions of the fresh air system, remind customers to check the use of the filter element, and regularly replace the filter element