intelligent erv hrv for air quality

{"cid":"91223798","title":"350CMH Residential ERV HRV fresh air system designed to deliver quiet and powerful ventilation with double filtration for enhanced indoor air","imgUrl":"https:\/\/img.chinax.com\/nimg\/62\/30\/64d508ff70b1f485f567ad4d16ae-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Holtop","Model Number":"DX3.5DCB4","Minimum Order Quantity":"1pc","Delivery Time":"Two weeks","Payment Terms":"TT","Speed":"1-5","Input Power (W)":"114","Weight (Kg)":"9.5","Packaging Details":"box","Power supply":"220V\/50Hz","Noise dB(A)":"27-37","Airflow(m3\/h)":"70-350","Certification":"CE","Supply Ability":"200000 units per year","Model":"DX3.5DCB4","External Pressure (Pa)":"24-120","Place of Origin":"Beijing,China"}}

{"cid":"91225759","title":"High Precision Air Quality Monitor Controller For Residential Commercial ERV HRV Fresh Air Exchange HVAC System","imgUrl":"https:\/\/img.chinax.com\/nimg\/bc\/e6\/4eb44268653165eb0127273006e0-200x200-1.jpg","attrs":{"Price":"US$80","Brand Name":"OEM or neutral (no brand)","Model Number":"KF-900A-Y2","Minimum Order Quantity":"1","Delivery Time":"2-3 weeks","Payment Terms":"T\/T","Power supply":"Customized (AC\/DC depending on project)","Communication Protocol":"RS485 Modbus RTU","OEM\/ODM":"Supported (UI, Logo, Hardware customization)","Supply Ability":"100000pcs","Smart integration":"BMS \/ Smart Home \/ HVAC System Integration","Air Quality Monitoring":"CO\u2082 (Optional), PM2.5 (Optional)","Place of Origin":"China","Product Name":"Smart Fresh Air Ventilation Controller","Certification":"CE, RoHS"}}