If your bringing in the air vs exausting it out i would suggest Getting a greenhouse hepa filter
than u know ur filtering out majority of the bad stuff or u could use a hvac filter if u make the filter a roof/prevent the filter from getting moisture. This is why I suggest greenhouse hepa vs hvac filter cause u can have it outdoors and even snow/rain and misc won’t fuck with it and u can reclean it
If it was me I would get a 8-10 inch version and have it with insulated ducting caude if u bring in cold air into hot room equals condensation. than have ur inline fan that brings in the air on the end connected to a temp triggered with probe and make it turn on when it hits above desired temps . This reduced so much hvac needs but also was super simple and cost effective.
Super tight, synthetic HEPA weave uniquely formed for maximum air flow by using opposing dual cone technology. HEPA fiber doesnt allow penetration of most things besides air. Reduces over 90% of all molds, bacteria and 99% of all insects entering your grow room through your intake fan. Attach...
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WILLHI WH1436A 10A Temperature Controller 110V Digital Thermostat Switch Sous Vide Controller NTC 10K Sensor Improved Version
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