Key points for the purchase and maintenance of ERV fresh air system

Recommendations for the purchase of ERV fresh air system

Air volume matching: Calculate the required air volume according to the room area (e.g. ≥300m³/h is recommended for a 100㎡ residence).

Heat exchange efficiency: Select a model with an efficiency of ≥70%.

Filter level: H11 and above HEPA filters are recommended to combat PM2.5.

Noise control: Night mode ≤30 decibels is preferred.

Brand and after-sales: Panasonic, Daikin, Honeywell and other professional brands are preferred.

Key points for the maintenance of ERV fresh air system

Filter replacement: 1~3 months for primary filter, 6~12 months for high-efficiency filter (depending on the pollution situation).

Heat exchanger cleaning: Clean dust with a soft brush or vacuum cleaner every year.

Regular inspection: Check the air duct sealing and fan operation status.