airflow calculation formula air cleaning fabric

{"cid":"91220292","title":"Airflow Calculation Formula Area \u00d7 Velocity \u00d7 0.8 Air Cleaning Fabric for Commercial\/Residential Air Purifiers","imgUrl":"https:\/\/img.ismap.com\/nimg\/63\/29\/c98db6a6ba987be4bbd2efb34d23-200x200-1.jpg","attrs":{"Price":"negotiate","Brand Name":"ZJNF","Minimum Order Quantity":"1","Delivery Time":"18 days","Place of Origin":"China","Payment Terms":"tt lc PayPal credit card","Packaging Details":"plywood\/wooden package","Supply Ability":"1000 Piece\/Pieces per Day The order is arranged according to the production scheduale","Filtration Efficiency":"98.6% @ 0.3um","Dimensions":"Customized Size","Dust Holding Capacity":"380g\/m\u00b2","Composite Structure":"Multi-Layer Composite Technology","Selection Method":"Four-Step Selection Method","Efficiency":"99.99% @ 0.3um","Material":"Glass Fiber\/PP PET Filtering Media","Airflow Calculation":"Formula: Area \u00d7 Velocity \u00d7 0.8"}}

{"cid":"91171467","title":"Eco - Friendly Art Painting Colours 3pcs Finger Paint Set 3 X 150ml","imgUrl":"https:\/\/img.ismap.com\/nimg\/45\/83\/38690a2ea40cf04b2bc60865964f-200x200-1.jpg","attrs":{"Brand Name":"Customized","Model Number":"NO. CF03150 NO.CF0375","Minimum Order Quantity":"100SETS","Delivery Time":"30-45days","Place of Origin":"Made in China","Payment Terms":"L\/C, T\/T, CAD","Packaging Details":"PVC Tube or PE bag or cloth bag\/canvas or Customized","Certification":"ASTMD","Color":"Free combination","Type":"Finger Paints Set","volume":"150ml acrylic paint set \/ 75ml acrylic paint set","color":"3 color acrylic paint set","OEM":"avaiable"}}