Greetings. Please refer to the information. In order to satisfy the following specifications, I require silent inline extraction fans for my two grow chambers. AU plugs or adaptors are required for all fans. Environmental controller for the regulation of humidity and temperature. A silent design that generates a minimum of 30 dB or a maximum of 40 dB is required for all fans. Additionally, if you manufacture carbon filters, I would appreciate a quote that is tailored to your recommended fan options. For delivery to New Zealand, please provide the shipping cost and an estimated import tax. The postal code is 3112. Room 1 requires a fan or fans. Air volume requirements: " 1500 m3/h or 883 cfm. " Requires a fan to accomplish a total air volume movement of " 1500 m3/h or 883 cfm. " I am willing to operate two fans in parallel at " Half the air volume rating capacity" If it is more cost-effective. 2X " 750m3/h or 441.5cfm" ; However, in this case, the units will necessitate a dual environment temperature and humidity controller to operate both simultaneously from the same controller. Air volume requirements for Room 2: " 800 m3/h or 470 cfm. " Requires a fan to accomplish a total air volume movement of " 800 m3/h or 470 cfm. " I am willing to operate two fans in parallel at " Half the air volume rating capacity" If it is more cost-effective. If so, the units will necessitate a dual environment temperature and humidity controller to operate both simultaneously from the same controller, as they are capable of producing 400m3/h or 235cfm. I am grateful.