mounted pm2 5 fresh air ventilation system

{"cid":"91225759","title":"Smart Fresh Air Ventilation Controller with CO2 PM2.5 Monitoring and TUYA APP Remote Control Featuring 4-inch LCD Display","imgUrl":"https:\/\/img.chinax.com\/nimg\/f4\/a8\/5baed200d7e300ee38187d15abf6-200x200-1.jpg","attrs":{"Price":"US$72\/pcs","Brand Name":"OEM or neutral","Model Number":"KF-900J","Minimum Order Quantity":"1","Delivery Time":"2-3 weeks","Payment Terms":"T\/T","Material":"PC and ABS","Display":"4-inch segment LCD","Place of Origin":"China","Supply Ability":"100000pcs","Communication Interface":"RS485 \/ Smart Home Integration","Packaging Details":"Cartons","Suitable for fans":"AC\/EC\/DC fan motors","Built in sensors":"VOC+PM2.5+CO2+Temperature+Humidity","Certification":"CE, RoHS","Touch Keys":"Fan, Mode, Power, Loop, Settings"}}

{"cid":"91223798","title":"Commercial Suspended Energy Recovery Ventilation System Fresh Air ERV PM2.5 pollen filtration","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/40\/7167c7a0ef72c1d4a54811622d09-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"Holtop","Model Number":"XHBQ-D10DCPMTHC","Minimum Order Quantity":"1pc","Delivery Time":"Two weeks","Place of Origin":"Beijing,China","Payment Terms":"TT","Supply Ability":"200000 units per year","Packaging Details":"box","Certification":"CE","Model":"XHBQ-D10DCPMTHC","Airflow (m3\/h)":"1000","External Pressure (Pa)":"76","Noise dB(A)":"42","Input Power (W)":"327","Weight (kg)":"62"}}