{"product_id":"air-king-energy-star®-certified-quiet-exhaust-fan-4-duct","title":"Air King Energy Star® Certified Quiet Exhaust Fan (4\" Duct)","description":"\u003cul\u003e\n\u003cli\u003eEnergy-efficient DC motor maintains CFM ratings across multiple static pressures and is suitable for continuous operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003eSolution for ASHRAE 62.2 continuous whole house ventilation Ventilation calculation: (Total sq. ft. of home\/100) + ((# of bedrooms+1) x 7.5 cfm) For best fan selection round the min ventilation # up to the nearest 0 - ex. 45 CFM should be rounded up to 50 CFM\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e4\" round duct connector with damper protects against backdrafts and ensures quiet operation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eSide access panel allows you to wire the fan from inside or outside the housing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eHVI Certified performance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Air King","offers":[{"title":"AK80 - 80 CFM","offer_id":52654719795566,"sku":"AKAK80","price":205.33,"currency_code":"CAD","in_stock":true},{"title":"AK90 - 90 CFM","offer_id":52654719828334,"sku":"AKAK90","price":212.33,"currency_code":"CAD","in_stock":true},{"title":"AK110PN - 100 CFM","offer_id":52654719861102,"sku":"AKAK110PN","price":164.99,"currency_code":"CAD","in_stock":false},{"title":"AKV - 30-100 CFM Variable Speed","offer_id":52654719893870,"sku":"AKAKV","price":261.33,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0277\/6678\/4139\/files\/80CFMENERGYSTARCertifiedSingleSpeedHumiditySensingExhaustFan.jpg?v=1757670323","url":"https:\/\/csrtools.com\/products\/air-king-energy-star%c2%ae-certified-quiet-exhaust-fan-4-duct","provider":"CSR Building Supplies","version":"1.0","type":"link"}