TT 100mm Inline Extractor Fan — 2 Speeds 145/187 m³/h | BloomLED

TT 100mm Inline Fan by Vanguard Hydroponics: steady airflow for your indoor grow

Without proper air exchange, heat builds, humidity stalls and growth slows to a crawl. This Ø100mm centrifugal inline fan pulls hot, stale air out of your grow space at either 145 or 187 m³/h while drawing only 33W. It is the ventilation backbone BloomLED recommends to every indoor grower starting out.

Two speeds, two growth stages

The two-position switch earns its keep every single day. Through veg, when your grow light is running cooler and transpiration is modest, the low setting at 145 m³/h keeps the tent comfortable while staying quiet and frugal. Come flower — or the first warm week of summer — the high setting at 187 m³/h takes over and restores a full air change in minutes.

That flexibility solves the most common ventilation mistake: oversizing. A fan that is too powerful strips humidity, stresses your plants and pulls air through a carbon filter faster than it can scrub it. Here you simply match the airflow to the stage you are in, with no external speed controller to buy.

Built to keep running

The copper-wound motor sits on ball bearings and is rated for 40,000 hours of operation, which works out to several years of continuous extraction. The centrifugal impeller, far more capable than a plain axial blade, holds its airflow even when a carbon filter and a few metres of ducting add static pressure to the system.

The ABS housing is light, will not corrode and hangs easily from bungee straps, which naturally dampens the vibration passed into your tent frame. Worth noting: this model is not acoustically insulated, so pair it with a Ø100mm duct silencer if the grow space shares a wall with a bedroom or living room.

Sizing and installing it properly

A reliable rule of thumb: multiply your grow space volume in m³ by 40 to 60 to get the airflow you need in m³/h. An 80 × 80 × 180 cm tent holds roughly 1.15 m³, so 46 to 70 m³/h in theory — comfortably within reach of this fan even once a carbon filter and ducting have taken their share.

Always mount the extractor high in the space, since hot air rises, and provide a low-level passive intake of equivalent cross-section. Fit the carbon filter upstream on the intake side, secure everything with duct clamps, and keep the Ø100mm aluminium ducting as short and as straight as you reasonably can.