Mars Hydro iFresh 4" Smart Fan & Filter Combo | 205 CFM EC Motor

Precision Control in Any Space

When ventilation is an afterthought, the entire operation pays for it — silently, cycle after cycle. Mismatched components introduce dead zones where stale air stagnates and humidity climbs unchecked. Manual speed controllers demand constant attention that operators cannot afford to give. Carbon filters sized wrong for the fan they're paired with either choke airflow or fail to scrub odor loads, creating compliance exposure and canopy stress simultaneously. Every hour the environment drifts outside target parameters is an hour the crop is underperforming, and most operators never see the cost because it never shows up as a single line item — it shows up as variance at harvest.

After deployment, the cultivation space runs on a closed-loop environmental logic rather than operator intuition. Airflow is dialed to the exact CFM the space demands, not the maximum the fan can push. Odor is neutralized at the source before it reaches the exhaust stream. Climate triggers fire automatically when temperature or humidity crosses a set threshold, and the operator receives an alert rather than discovering the problem during a walkthrough. The result is a space that holds its parameters across the full photoperiod without manual intervention — and a facility that scales without adding proportional labor overhead.

The mechanism behind that outcome is an EC (electronically commutated) motor operating at up to 3,000 RPM (±10%), delivering a maximum airflow of 205 CFM (348 m³/h) against a static pressure of 347 Pa (±10%). EC motor architecture provides longer service life than AC motor equivalents while drawing only 27W (±5%) at a rated current of 0.4A maximum — operating across the full 110–240 VAC, 50/60 Hz range without a separate transformer. Noise output is held to 26 dBA, keeping the acoustic footprint below the threshold where it becomes a facility management issue. The PWM speed control architecture allows precise airflow modulation, and the USB-based smart controller design eliminates the cable clutter that makes multi-unit installations difficult to maintain. The included Australian activated charcoal carbon filter handles both odor and particulate removal, and the full kit — fan, filter, 25-ft flexible duct tube, speed controller, 3 duct clamps, and 2 hanging straps — arrives as a matched system, not a collection of parts. In practical terms, the Mars Hydro iFresh 4" Grow Kit delivers up to 205 CFM of EC-motor-driven airflow at 26 dBA and 27W across a 4-inch ducted installation on any 110–240 VAC circuit.

Where This Belongs (and Doesn't)

Electrical and HVAC integration must comply with applicable local codes. Consult a licensed electrician or mechanical contractor before installing inline ventilation in any ducted system connected to building infrastructure. This unit is rated IP44 and is not rated for direct moisture exposure or outdoor installation.

How It Works

The iFresh 4" kit is built around an EC motor — electronically commutated, brushless, and inherently more efficient than AC motor designs at partial load. The motor drives the fan blade assembly at up to 3,000 RPM (±10%), producing a maximum airflow of 205 CFM (348 m³/h) with a static pressure ceiling of 347 Pa (±10%). Because EC motors modulate speed electronically rather than through resistive throttling, power draw scales with demand: the unit draws only 27W (±5%) at a maximum rated current of 0.4A, operating on any 110–240 VAC, 50/60 Hz supply. The IP44 enclosure rating protects the motor and electronics against particulate ingress and directional moisture contact, making the unit suitable for the humidity-variable conditions present in active cultivation environments.

Speed control is delivered via PWM (pulse-width modulation), which allows precise, stepless airflow adjustment rather than the coarse stepped control of traditional AC fan controllers. The included speed controller uses a USB-based connection architecture that reduces cable clutter in multi-unit installations — a meaningful operational advantage when managing several tents or rooms from a single walkway. For operators who require automation, the Standard Version is field-upgradeable to app-based control via the iFresh Pro Add-On Pack, which adds an iConnect controller and temperature/humidity sensor. Once the Pro Add-On is installed, the system supports remote airflow adjustments, alarm notifications, climate-triggered automation, loop timers, and VPD monitoring — all managed through the Mars Hydro app without requiring physical access to the unit.

The included carbon filter uses Australian activated charcoal media in a refillable housing, providing odor and particulate removal matched to the fan's 205 CFM output. The refillable design eliminates the recurring cost of full filter replacement — operators replenish the activated charcoal media rather than purchasing a new filter body each cycle. The complete kit includes the 4" inline duct fan, 4" carbon filter, speed controller, 25-ft flexible duct tube, 3 duct clamps, and 2 hanging straps — all components sized and matched to operate together without aftermarket adaptation. In practical terms, the Mars Hydro iFresh 4" Grow Kit delivers 205 CFM of EC-motor airflow at 26 dBA, 27W (±5%), and 347 Pa static pressure through a complete 4-inch ducted system on 110–240 VAC.

Configuration Decoder

The iFresh 4" Grow Kit is available in two configurations. Both share identical hardware specifications — same EC motor, same airflow rating, same carbon filter, same duct kit. The difference is control architecture.

Note: The Pro Version Add-On is a controller upgrade accessory, not a standalone kit. It requires the Standard Version fan and filter system to function. App control requires both the iConnect controller and the temperature/humidity sensor included in the Add-On Pack.

Commercial Assurance

• Manufacturer: Mars Hydro — direct supply chain with vertically integrated production, enabling commercial-grade component specifications at reduced price points relative to competing brands.
• Motor Standard: EC motor with service life exceeding comparable AC motor designs; core motor and blade specifications are fully comparable to flagship models from competing brands per manufacturer documentation.
• Electrical Compliance: Operates on 110–240 VAC, 50/60 Hz — compatible with standard U.S. commercial and residential electrical infrastructure without step-down transformers.
• IP Rating: IP44 — protected against solid particulate ingress (1mm+) and directional water spray; suitable for the humidity-variable conditions of active cultivation environments.
• Warranty: Warranty period not specified in source data. Contact Cannafull Spectrum Solutions at support@cannafullspec.com for current warranty terms prior to purchase.
• Authorized Dealer: Cannafull Spectrum Solutions is a factory-authorized dealer for Mars Hydro products. All units are sourced through authorized distribution channels and carry full manufacturer support eligibility.

System Integration

• Ducting Compatibility: Designed for standard 4-inch flexible or rigid duct systems; the included 25-ft flexible duct tube and 3 duct clamps provide immediate installation capability without additional hardware.
• Electrical Integration: 110–240 VAC, 50/60 Hz operation allows direct connection to standard U.S. commercial circuits; 0.4A maximum rated current presents negligible load on shared circuits.
• Automation Ecosystem: When paired with the iFresh Pro Add-On Pack (iConnect controller + temperature/humidity sensor), the unit integrates into the Mars Hydro app ecosystem for climate-triggered automation, VPD monitoring, loop timers, and remote alarm management.
• Multi-Unit Scalability: USB-based controller architecture and low per-unit power draw (27W ±5%) support scalable deployment across multiple tents or rooms without significant electrical infrastructure changes.
• Carbon Filter Maintenance: Refillable activated charcoal media housing eliminates full filter replacement cycles — operators replenish media only, reducing ongoing consumable costs in multi-cycle operations.

Facility Integration Data

The following table models electrical load and procurement cost for fleet deployments of the iFresh 4" Grow Kit (Standard Version) across scaled facility configurations. All figures are based on verified source specifications: 27W (±5%) input power, 0.4A maximum rated current per unit, $129.99 MAP per unit.

Power figures use nominal 27W per unit. Current figures use 0.4A maximum rated current per unit at 120V. Actual draw will vary with speed setting and static pressure load. Consult a licensed electrician for circuit capacity planning on fleet deployments of 20+ units.

Operator Field Notes

• EC Motor Longevity: EC motors eliminate the brush wear and heat buildup that limit AC motor service life — plan for significantly longer replacement intervals compared to conventional inline fans at this price point.
• Noise Floor Management: At 26 dBA, the iFresh 4" operates below the threshold where fan noise becomes a facility management issue; this matters in multi-room operations where cumulative equipment noise affects walkthrough conditions.
• Upgrade Path Planning: If app-based automation is a near-term operational requirement, purchase the Pro Add-On Pack at the time of initial kit procurement — the $10.99 add-on is significantly less expensive than retrofitting a separate smart controller later.
• Carbon Filter Media: The refillable housing means filter maintenance is a media replenishment task, not a full filter replacement. Track media saturation by odor breakthrough rather than a fixed calendar interval — actual cycle length depends on canopy load and airflow rate.
• Static Pressure Awareness: The 347 Pa static pressure rating is the ceiling, not the operating target. Long duct runs, multiple bends, and loaded carbon filters all reduce effective airflow below the 205 CFM maximum — size duct runs accordingly and minimize unnecessary bends.
• Voltage Flexibility: The 110–240 VAC operating range means this unit can be redeployed across facilities with different electrical infrastructure without modification — a meaningful advantage for operators managing multiple sites.

Operator FAQ

Shipping and Logistics

• Shipping Territory: Cannafull Spectrum Solutions ships within the contiguous 48 United States only. Orders to Alaska, Hawaii, U.S. territories, or international destinations cannot be fulfilled through this store.
• Carrier and Transit: Standard and expedited shipping options are available at checkout. Transit times vary by destination and carrier availability. Commercial address delivery may qualify for reduced freight rates on multi-unit orders — contact us before placing large fleet orders.
• Returns: Returns are accepted for defective units per our Return Policy. Non-defective returns must be initiated within the return window specified at cannafullspec.com/pages/return-policy. Units must be returned in original, uninstalled condition with all included components.
• Restocking Fee: Returns of non-defective items are subject to a restocking fee of up to 25% per our Return Policy. Review full terms at cannafullspec.com/pages/return-policy before ordering.

Questions about your order? Contact Cannafull Spectrum Solutions at support@cannafullspec.com or through the contact form at cannafullspec.com.

What's in the Box

• 1x Mars Hydro iFresh 4-Inch Smart Inline Duct Fan (EC motor, PWM speed control)
• 1x 4-Inch Refillable Carbon Filter (Australian activated charcoal media)
• 1x Speed Controller (USB-based, manual PWM)
• 1x 25-ft Flexible Duct Tube (4-inch diameter)
• 3x Duct Clamps
• 2x Hanging Straps

Note: The iConnect controller and temperature/humidity sensor required for app-based smart control are NOT included in the Standard Version. These components are available separately via the iFresh Pro Version Add-On Pack. Kit contents confirmed from manufacturer source data. Verify actual box contents upon receipt and report any discrepancies to Cannafull Spectrum Solutions within 48 hours of delivery.

Regional Compliance and Deployment Notes

• Electrical Code Compliance: Installation must comply with the National Electrical Code (NEC) and all applicable state and local electrical codes. Consult a licensed electrician before integrating this unit into any fixed building electrical system.
• IP44 Rating Scope: The IP44 enclosure rating provides protection against solid particulate ingress (1mm and larger) and directional water spray. This unit is not rated for submersion, direct water exposure, or outdoor installation. Do not install in locations subject to direct precipitation or standing water.
• Ventilation and Building Codes: Inline duct fans connected to building HVAC or exhaust infrastructure may be subject to mechanical permitting requirements. Verify local building code requirements before connecting to shared building ventilation systems.
• Operating Temperature Range: This unit is rated for operating temperatures of -20°C to 60°C (-4°F to 140°F). Do not operate outside this range. Ambient temperatures above 60°C may cause motor thermal protection to activate.
• Licensed Facility Deployment: Operators deploying this equipment in licensed cultivation facilities are responsible for ensuring all ventilation and odor control systems meet the requirements of their state or local licensing authority. Cannafull Spectrum Solutions does not provide compliance consulting services.
• U.S. Deployment Only: This product is sold and supported by Cannafull Spectrum Solutions for deployment in licensed U.S. facilities within the contiguous 48 states only.