AC Infinity – What Is This Company and Why Is It Making Such a “Buzz” in Grow Shops?

If you had to name one brand that has changed the way indoor growers approach climate control in recent years, AC Infinity would be one of the top candidates. They did something that may sound simple on paper, but in practice solves a huge list of real problems: they combined powerful ventilation, quiet operation, smart automation, and real control over temperature and humidity into one consistent system.

In a grow tent (growbox), everything comes down to one thing: stable conditions. Lighting is crucial, of course—but without proper air exchange, humidity control and temperature stability, typical indoor “drama” starts quickly:

• overheating inside the tent,

• humidity staying too high during late flowering,

• weak odor control even with a carbon filter,

• airflow “backdraft” through ducting,

• noise that drives you crazy,

• and the classic: “I have everything, but I can’t stabilize VPD inside.”

AC Infinity entered this space almost like a smart home brand, but built specifically for indoor growing.

AC Infinity in a Grow Shop – What Do They Actually Make?

In short: AC Infinity produces equipment for ventilation, filtration and automatic climate control, and lately they’ve also expanded into complete systems and practical accessories.

The most important product categories include:

• inline duct fans (inline fans)

• carbon filters

• controllers & automation (Controller 67/69 + app)

• air circulation inside the tent (clip fans)

• grow tents / growboxes (CloudLab)

• humidification / dehumidification (depending on the series)

• ducting, silencers, connectors and mounting accessories

• ready-to-run ventilation kits (fan + filter + controller)

Now let’s go step by step—practical and specific.

1) AC Infinity Inline Fans – The Core of Your Ventilation System

An inline fan is the device that does the heavy lifting in a grow tent 24/7. It pulls out hot air, stabilizes temperature and humidity, supports negative pressure, and when used with a carbon filter it also helps control smell.

A strong inline fan means:

• better heat removal from the lighting zone

• more stable humidity (especially after watering)

• better airflow through the tent

• stronger, healthier plants thanks to better oxygen exchange

Most Popular AC Infinity Fan Lines

In grow shops, you’ll usually see several AC Infinity fan families.

✅ CLOUDLINE (e.g., S4 / S6 / S8)

This is probably the most well-known line. Growers appreciate it for:

• excellent noise control (quieter than many typical inline fans),

• solid power and stable airflow,

• compatibility with AC Infinity controllers.

These fans are usually chosen by duct size:

• 4” / 100 mm – small tents, drying areas, 40x40 to 60x60

• 6” / 150 mm – the most common choice for 80x80, 100x100, 120x60

• 8” / 200 mm – larger tents and stronger grow lights (higher heat output)

In practice:
For a 100x100 cm tent with a 300–480W LED, most growers choose 150 mm, because it gives you extra airflow headroom while staying quieter.

✅ SILET / RAXIAL / “Pro” Series

Depending on what’s currently available in Europe, you may also find other AC Infinity fan types that focus more on:

• higher static pressure (better performance with long duct runs + carbon filter),

• even quieter motor operation,

• more precise speed control.

The rule is simple: the better the motor + smart control, the easier it is to keep stable conditions without running the fan at 100%.

2) AC Infinity Carbon Filters – Odor Control Without Struggling

Anyone doing indoor growing eventually learns this: a carbon filter is not an “extra”—it’s a must-have if you want clean and discreet airflow.

AC Infinity carbon filters are often chosen because they offer:

• good-quality activated carbon,

• solid build and durability,

• strong performance and long lifespan,

• compatibility with standard ventilation sizes (100/125/150/160 mm, etc.).

How Does a Carbon Filter Work?

Air passes through a layer of activated carbon, which captures odor particles. The concept is simple, but the real efficiency depends on:

• humidity (too high RH reduces odor control performance),

• fan power (air must move correctly through the filter),

• system tightness (leaks destroy odor control).

Most common mistake:
A fan that is too weak for the filter → the filter restricts airflow, performance drops, and odor may still leak out.

3) AC Infinity Controllers – Automation That Actually Works

This is where AC Infinity becomes truly different, because they don’t just sell a fan—they sell a complete system.

✅ Controller 69 / 69 PRO

These controllers can automate:

• temperature,

• humidity,

• fan operating modes,

• day/night scheduling,

• and in PRO versions often integration with additional devices.

The biggest advantage is that instead of manually adjusting a dial, you:

• set your target temperature and humidity,

• and the system automatically adjusts fan performance.

Result?

• fewer climate spikes,

• less plant stress,

• easier to maintain a stable environment,

• less noise because the fan doesn’t need to run at 80–100% constantly.

✅ AC Infinity App (WiFi / Smart Control)

For growers who like remote control, the app is a big advantage:

• real-time temperature and humidity monitoring,

• alerts and notifications,

• charts and history tracking,

• remote settings changes.

This is especially useful when:

• you’re away from home,

• you want stable, predictable climate control,

• you run multiple tents or a separate drying area.

4) AC Infinity Circulation Fans – Small Device, Huge Impact

Air circulation inside the grow tent is just as important as exhaust ventilation. Without proper airflow inside the tent:

• mold risk increases,

• moisture pockets appear,

• leaves can stay damp and heavy,

• temperature becomes uneven across the canopy.

AC Infinity clip/oscillating fans are popular because:

• they’re stable and well-built,

• they run smoothly,

• they don’t feel like cheap “office fans” running full blast,

• they can be positioned properly inside the tent.

Practical tip:
It’s better to use two weaker circulation fans than one powerful “turbine” that can stress plants and damage stems.

5) AC Infinity CloudLab Grow Tents – Strong Competition for Classic Tents

CloudLab tents focus on:

• strong zippers,

• durable materials,

• solid light sealing,

• well-designed ventilation ports,

• overall “premium feel” in daily use.

A high-quality grow tent means:

• easier climate control,

• less air loss,

• fewer light leaks,

• better access and comfort.

CloudLab tents often appear in complete setups or as a premium option for growers who want to buy once and keep it for years.

6) Ducting, Silencers and Connectors – The Details That Matter

A lot of growers focus only on “fan + filter”, and then wonder why the whole system is loud or unstable.

Common reasons include:

• ducting that’s too small,

• too many sharp bends,

• no acoustic silencer,

• cheap ducting that vibrates and amplifies noise.

AC Infinity offers high-quality installation accessories such as:

• flexible ducting,

• connectors and adapters,

• reducers,

• clamps,

• and often silencers.

These parts may look boring, but they can dramatically improve comfort and noise levels.

7) AC Infinity Kits – The Best Option for Beginners

When someone starts indoor growing, the most common problem is lack of system consistency:

• carbon filter from one brand,

• fan from another brand,

• controller doesn’t match,

• cable too short,

• wrong adapters.

That’s why AC Infinity kits can be such a good solution: they usually include:

• inline fan,

• carbon filter,

• controller,

• sometimes ducting + clamps,

• a ready-to-run configuration.

For customers this means: fewer mistakes, fewer returns, less frustration.

How to Choose AC Infinity Gear for Your Grow Tent (Simple & Logical)

Most setups can be built using this approach:

Step 1: Grow Tent Size

• 60x60 / 70x70 → typically 100 mm

• 80x80 / 100x100 / 120x60 → typically 150 mm

• large tents → 200 mm

Step 2: Grow Light Power

The stronger your LED, the more heat you need to remove.

Step 3: Carbon Filter

Filters restrict airflow, so it’s smart to have extra fan capacity.

Step 4: Comfort

If you want quiet performance, it’s better to use a larger fan running at 40–60% than a small fan running at 100%.

Why Is AC Infinity So Popular? (Real Reasons, Not Marketing)

The most common reasons growers choose AC Infinity:

• they want a quieter setup,

• they’re tired of constantly adjusting things manually,

• they like equipment that “just works,”

• automation makes life easier,

• better temperature and humidity control improves stability,

• it helps reduce mold risk and plant stress.

Stable conditions = fewer problems.
Fewer problems = better final results.

AC Infinity – Who Is It For?

AC Infinity is perfect for growers who:

• want to take indoor growing seriously,

• run a strong LED and struggle with temperature,

• need ventilation for drying,

• use carbon filtration and want real odor control,

• want automation instead of constantly adjusting settings.

For a first grow tent setup where you want reliability and comfort, AC Infinity is often a game changer.

Final Thoughts: Is AC Infinity Worth It?

If indoor comfort and stable climate conditions matter to you, AC Infinity is one of the safest choices. It’s not always the cheapest option, but you’re paying for:

• smooth and quiet operation,

• real climate control,

• automation,

• a well-matched system built for indoor growing.

And in indoor setups, climate is what drives yield and quality.

FAQ – Most Common Questions About AC Infinity

Is AC Infinity loud?
Usually, AC Infinity fans are quieter than many standard inline fans—especially when running at lower speeds.

Does the controller really make a difference?
Yes. It automatically maintains temperature and humidity instead of manual fan adjustment.

What fan size is best for a 100x100 tent?
Most growers choose 150 mm to keep airflow strong while staying quiet.

Does a carbon filter work well at high humidity?
It works, but very high humidity can reduce odor control effectiveness and shorten carbon lifespan.