2 x CYCLONE 16" WALL FANS 3 Speed Oscillating Fan Grow Room, Home, Office 40w spray Key Features Non toxic Safe Key Features Non toxic Safe to use on plants in and stage of growth Neutral pH Won't affect solution stability Increases Oxidation Reduction Potential (ORP) Breaks down scale Keeps irrigation systems in pristine condition Reduces biofilm Keep lines clear of dangerous organic material Very low TDS Doesn't throw off mineral balance Promotes robust root growth Effective as a final flush to clean growing media Keeps irrigation system cleaner and running efficiently longer Reduces mineral buildup in media and lines Increases oxygen and nutrient availability in growing mediaHow To UseSystem Maintenance:Irrigation systems that are regularly maintained with Athena Cleanse treatment will last longer In the case of the Road Kit This is to avoid causing windburn on your plant's leaves as the circulated air will bounce off your wall and then around your grow room How To Use Cyclone Wall Fan 16″ 2pcs