Fresh air system is a modern home environment adjustment system, through a reasonable

 air intake and exhaust mode, can effectively improve indoor air quality, and maintain air 

circulation and comfort. The following will introduce the air intake and exhaust mode of 

the fresh air system and its principle in detail.

First, the way of air intake

1. Natural air intake:

Natural air intake is to use the pressure difference between the air inside and outside the

 house to achieve air intake. Usually, fresh air systems set up air intakes in some parts of 

the building, using the temperature difference or wind pressure difference between the 

inside and outside of the building, so that the outside fresh air naturally flows into the ro

om. This way of air intake is simple and economical, but it is greatly affected by the exte

rnal environment.

2. Mechanical air intake:

Mechanical air intake is a fan equipment that uses a fresh air system to force fresh air into

 the room through a pipeline. This allows precise control of the intake air volume and ens

ures that the air is clean and humidity is appropriate. Mechanical air intake is usually used 

in conjunction with exhaust systems to maintain a dynamic balance of indoor and outdoor

 air.

Second, exhaust mode

1. Top feed exhaust:

Top feed exhaust is to install the fresh air system exhaust outlet on the top of the room, 

and exhaust the indoor dirty air through the fan. This method has high exhaust efficiency, 

but it is necessary to pay attention to the position and number of exhaust vents to avoid 

affecting the indoor beauty and comfort.

2. Side feed exhaust:

Side-feed exhaust means that the exhaust outlet is installed on the wall or other side 

positions, and the indoor dirty air is discharged through the fan. This method is suitable

 for a variety of rooms and space layouts, and can be flexibly arranged according to 

actual needs.

Third, the fresh air system of the air balance principle

The principle of air inlet and exhaust balance of the fresh air system refers to the dynamic

 balance of indoor and outdoor air exchange by accurately controlling the size, quantity 

and position of the intake and exhaust vents, as well as the operating parameters of the 

fan. This not only ensures the freshness and cleanliness of the indoor air, but also avoids 

the energy waste and discomfort caused by excessive ventilation.

Four, other points of the fresh air system

1. Filter and filtration system: Fresh air systems are usually equipped with filters to filter out impurities, particles and other pollutants in the air entering the room. Regular filter changes are essential to maintain indoor air quality.
2. Noise control: the design of the fan and pipeline of the fresh air system should consider noise control to ensure that the system will not produce excessive noise during operation, affecting the life and rest of the occupants.
3. Energy consumption management: The energy consumption management of the fresh air system is also very important, and the fans and equipment with higher energy efficiency should be selected, and the operating parameters should be adjusted according to the actual needs to achieve the goal of energy conservation and emission reduction.
4. System maintenance and maintenance: The fresh air system needs regular maintenance and maintenance, including cleaning filters, checking fans and pipes, calibrating system parameters, etc., to ensure the normal operation of the system and long-term use effect.
In short, the air intake and exhaust mode of the fresh air system is an important means to ensure indoor air quality and comfort. Through reasonable air intake and exhaust mode and balance principle, as well as other points and precautions, you can ensure that the fresh air system plays the best effect in the environment such as home and office places.