Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo

More about Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo

A good grow light is only part of the setup. In a closed tent, heat, humidity, and flowering smells can build up quickly. This Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo tackles those basics by pairing an iFresh extractor with a matching carbon filter, manual speed controller, flexible ducting, and mounting hardware. Instead of piecing the main parts together separately, you get a pack with everything in a single order. If you prefer looking at all the options independently, the Sirius online Growshop also has premium grow tents, lighting, and other climate gear to complete the setup.

What comes in the kit?

You get the main parts of a complete extraction and odor-control setup in the kit, with the fan and filter matched to the 4-inch or 6-inch version you choose:

• 1 × iFresh inline duct fan
• 1 × matching refillable carbon filter with washable pre-filter
• 1 × manual speed controller
• 1 × flexible duct tube
• 3 × duct clamps
• 2 × hanging straps

Why ventilation matters in an indoor grow

You do not need to run an extractor at full power when your grow requires less airflow, and a carbon filter is useful when odor control is important. Good climate control is about moving enough air to help remove excess heat and moisture without using more fan power than necessary. The carbon filter adsorbs odors before the exhaust leaves the tent, while its refillable design and washable pre-filter make maintenance straightforward.

What do the fan, carbon filter, and speed controller do?

The iFresh duct fan uses an EC motor with PWM speed control. The 4-inch version reaches up to 205 CFM and about 348 m³/h, while the 6-inch model reaches 402 CFM and about 682 m³/h. The right size depends on your tent, heat from your lighting, duct length, bends, and filter resistance, so bigger is not automatically better.

Manual speed controller and smart upgrade options

This standard combo keeps control simple: use the included physical speed controller to set the fan output yourself. The standard kit does not include the additional hardware needed for temperature and humidity monitoring, app-based control, or automatic climate-control functions. 

If you want iControl-based smart climate automation from the start, Sirius also offers the Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo with iControl Smart Controller. The iControl system adds temperature and humidity monitoring and smart control of compatible Mars Hydro fans, lights, and other connected equipment.

Mars Hydro 4-inch ventilation combo

For a smaller personal grow, the 4-inch option is the natural starting point. Mars Hydro positions it for compact tents, although a higher-heat lighting setup, long duct run, or restrictive layout can increase your airflow needs. The 4-inch combo moves up to 205 CFM / 348 m³/h with a rated fan power consumption of 27 W ±5%, and its matching refillable filter is rated at 210 CFM.

• 100 mm / 4-inch duct size
• Up to 205 CFM, approximately 348 m³/h
• 27 W ±5% fan input power
• EC motor with PWM speed control
• Matching 4 × 12-inch refillable carbon filter

If you want to buy the Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo, choose this version when your Mars Hydro grow tent is compact and you want a properly sized extractor without going overboard.

Mars Hydro 6-inch ventilation combo

The 6-inch version is made for setups that need more airflow. At up to 402 CFM / 682 m³/h, it offers almost twice the nominal maximum airflow of the smaller fan. Mars Hydro recommends 6-inch fans for larger tents and higher airflow requirements. The 150 mm fan has a rated power consumption of 62 W ±5%, while its matching refillable carbon filter is rated at 410 CFM.

• 150 mm / 6-inch duct size
• Up to 402 CFM, approximately 682 m³/h
• 62 W ±5% fan input power
• Higher airflow for larger or hotter grow spaces
• Matching 6 × 8.5-inch refillable carbon filter

Pick the 6-inch version because your setup needs the extra airflow, not simply because the number is bigger. Proper sizing still makes the system easier to live with day to day.

Mars Hydro 4-inch vs 6-inch

The choice is easy once you look at the grow space and the amount of air you actually need to move. The 4-inch version is the lower-power option at about 27 W and up to 348 m³/h, while the 6-inch version uses around 62 W and moves up to 682 m³/h. Both versions include the same basic installation essentials: a matching carbon filter, flexible duct tube, three clamps, and two hanging straps.

Buy your Mars Hydro ventilation kit at Sirius.nl

At Sirius, you can combine your ventilation with a suitable grow tent, grow lights, and other climate control equipment in one order. If you want smart sensing and app-based control immediately, choose the Mars Hydro iFresh Inline Duct Fan and Carbon Filter Combo with iControl Smart Controller instead. Existing compatible iFresh hardware can also be upgraded with the MarsPro Add-On Pack.

You can also browse the wider Mars Hydro range or finish the rest of your grow through the Sirius Growshop. Is your setup ready to host a healthy weed plant? Then go to Sirius Seedshop for feminized, autoflowering, CBD-rich, and regular cannabis seeds to get the next grow moving.