The fresh air system is related to the air purifier. Are you clear?
The fresh air system can completely replace the air purifier,and vice versa.
The essential difference between the two is that the fresh air system can exchange air into the house,that is,the"outer circulation",and the purifier can only change the air in the room,that is,the"internal circulation",in exchange for the old air in the house.Fresh air exchanges fresh air from outside,which can effectively increase the indoor oxygen concentration.
Different air circulation methods also determine the advantages of the new air system in addition to formaldehyde:
The purifier only has an effect on purifying PM2.5,but it has no effect on removing formaldehyde.In contrast,fresh air is used for indoor and outdoor air exchange,so indoor formaldehyde can be discharged to the outdoors,which can provide a certain dilution effect on indoor formaldehyde concentration.If it is from the degree of trouble and price point of view,the purifier will have more advantages,but the cost of the new air system and the use of effects are better than the traditional air purifier!