MELONFARM Air Filtration Kit - 4 Inch Inline Duct Fan, 190 CFM, 12 Inch Carbon Filter

Overview

Meet the MELONFARM Air Filtration Kit, a compact, all-in-one solution built for grow tents, hydroponics rooms, and other indoor spaces where fresh air and odor control matter. The kit centers on a 4-inch inline duct fan rated up to 190 CFM, with a built-in speed controller to tailor airflow to your setup. Paired with a 12-inch high carbon filter and 8 feet of ducting plus a rubber coupler, it creates a complete path for intake or exhaust air, helping to balance temperature, humidity, and overall air quality.

Key benefits

• Odor control: premium RC 412 Australian virgin charcoal with an IAV of 1200+ delivers high absorption and practical performance in grow tents and hydroponic spaces.
• Effective airflow: the fan delivers up to 190 CFM with a 2300 RPM capability, and a deflector helps focus the stream and reduce turbulence for steadier air movement.
• Durable build: the 4" flange and bottom are solid, designed to minimize leakage and extend service life, enabling stable installation on pipes.
• Smart design: double-sided galvanized steel mesh with a hexagonal layout increases open area for better filtration and airflow; a removable pre-filter blocks 99% of particles to keep the main filter clean.
• Versatile use: works as either intake or exhaust in grow tents, closets, storage rooms, kitchens, bathrooms, or basements, making it a flexible solution for indoor spaces.

Usage ideas

• Grow tents where odor control and heat transfer are priorities, especially during active cultivation cycles.
• Hydroponic rooms needing steady air exchange and humidity management to support plant health.
• Bathrooms or kitchens where odors, humidity, and limited space require a compact filtration setup.

Tips for setup: ensure proper sealing with the rubber coupler, and mount the filter and fan in configurations that minimize resistance in the ductwork. This kit provides a complete path for airflow and filtration, but results can vary based on room size, duct routing, and external conditions.