The core problem of compressor oper
Look at the difference between fresh air system and exhaust fan
With the increasing airtightness of residences, it has become an inevitable trend to choose suitable ventilation equipment. When looking for ventilation products, many users will search for exhaust fans for home fresh air systems.
In fact, the home fresh air system and the exhaust fan are two different concepts. The home fresh air system is an all-round ventilation device for the whole house, while the exhaust fan can only ventilate the local space. Specifically, the two There are five major differences:
Home fresh air system exhaust sector: ventilation effect
The exhaust fan has a large instantaneous air volume, and there is no organized reasonable pressure field and air flow path. It can only achieve partial space exhaust, cannot enter the air, indoor and outdoor air cannot circulate, there are too many fresh air dead corners; the fresh air system has exhaust air , And there is air intake, which can completely remove indoor odor, decoration pollution, excess humidity, dust, bacteria and viruses, etc., and supplement outdoor fresh air, which is everywhere in the room.
Family fresh air system exhaust sector: air filtration
After the exhaust fan discharges the indoor air, the outdoor air will flow into the room. The air enters the room automatically through the doors and windows without any treatment; the fresh air system has an air filter function, which sterilizes and filters the air before introducing the outdoor air , Purification treatment, the real fresh and pure air is sent into the room, thus ensuring the health and safety of home life.
Home fresh air system exhaust sector type: operating time
The exhaust fan operates in stages. It works when it is turned on and stops when it is turned off. It is impossible to operate continuously for 365 days; the fresh air system works 24 hours a day and 365 days, and the standard space fresh air system can continuously operate 80 thousand More than one hour, less than 1 kilowatt-hour of electricity is needed per day, which can ensure the circulation of air at all times.
Family fresh air system exhaust sector: noise level
The operation of the exhaust fan is very noisy, and at the same time it cannot prevent outdoor noise from entering the room, such as: noise generated by cars, construction sites, etc., which affects people's normal life and rest; the fresh air system has low noise, the international noise standard is 40 decibels, and the European and American standards are 30 The standard space fresh air system is only 26 decibels. The master bedroom, elderly room, and baby room can enjoy a quiet sleep at night.
Home fresh air system exhaust sector: heat recovery function
The exhaust fan does not have the function of heat recovery. It directly exhausts the indoor air when working, and the cold or heat in the indoor air will also be lost, resulting in a waste of energy; while the fresh air system with heat exchange is used before the outdoor air is introduced into the room. The indoor leads to outdoor air for heat exchange, and the heat exchange rate can reach 70% or even more than 90%, avoiding the waste of indoor energy and saving cooling or heating costs.
The above is the introduction of the central fresh air system and the exhaust sector. I hope it can be helpful to you. Choose the appropriate indoor ventilation method according to your own situation.
