G.A.S. Diffuseair

G.A.S. DIFFUSEAIR — Total Climate Control for Your Grow Room or Grow Tent 🌬️🌿

Take command of your indoor growing environment with the G.A.S. DIFFUSEAIR — the ceiling-mounted air diffusion system designed and manufactured by SYSTEMAIR, by GLOBAL AIR SUPPLIES (G.A.S.). Say goodbye to hot spots, humidity pockets and wind-burned crops. Say hello to perfectly mixed, evenly distributed air throughout your entire grow space. 🙌

Why Your Grow Room Needs the DIFFUSEAIR 💡

Uneven air distribution is one of the most common — and most damaging — problems in indoor hydroponic growing. Microclimates, high-humidity zones and harsh air streams can stress your plants, cause wind burn, and drive salt accumulation in your growing substrate (especially under LED lights). The DIFFUSEAIR solves all of this in one elegant, ceiling-hung unit.

• 🌡️ Eliminates temperature microclimates — no more hot spots under your grow lights
• 💧 Destroys high-humidity zones — even humidity distribution across your entire canopy
• 🍃 Prevents wind burn — gentle, diffused airflow won't stress your plants or leaves
• 🧂 Reduces salt accumulation — consistent airflow prevents salt build-up in growing substrate
• 🔝 Ceiling mounted — frees up precious floor space for more plants
• 🔩 Screws and brackets included — ready to hang right out of the box
• ✅ 12-month warranty — backed by quality you can count on
• 🏭 Designed and manufactured by SYSTEMAIR — proven aerodynamic technology

How the DIFFUSEAIR Works 🔄

The DIFFUSEAIR pulls air in from the top of your room and pushes it out above the plant canopy — moving air in the critical zone between your grow lights and your plants. Ideal for both ventilated and closed-loop grow rooms.

Three Powerful Ways to Use Your DIFFUSEAIR 🛠️

1. Air Distribution Mode 🔁

Mount the DIFFUSEAIR centrally in your square grow room. It pulls air from the top and distributes it evenly above the canopy — replacing the need for multiple oscillating fans. One unit. Total coverage.

• ✅ Best for: ventilated and closed-loop square grow rooms
• ✅ Replaces all oscillating fans in a single central position
• ✅ Moves air between grow lights and plant canopy

2. Inlet Distribution Mode 🌀

Connect ducting directly to the DIFFUSEAIR and use it as your fresh air intake point. Pull CO₂-rich air from outside or any desired source and distribute it exactly where your plants need it most.

• ✅ Acts as your climate cooling intake fan
• ✅ Compatible with open and closed-loop systems
• ✅ Distributes CO₂-rich air directly above the canopy

3. Multiple Unit Setup 📐

Running a larger grow room? Position multiple DIFFUSEAIR units above the plant canopy for perfectly even air distribution across the entire space.

• ✅ Eliminates every hot spot and humidity pocket
• ✅ No oscillating fans required
• ✅ Ideal for large and commercial grow rooms

Available Sizes 📏

The G.A.S. DIFFUSEAIR is available in five sizes to suit any grow space:

• 🔵 100mm
• 🔵 125mm
• 🔵 150mm
• 🔵 200mm
• 🔵 250mm

In the Box 📦

• ✔️ G.A.S. DIFFUSEAIR unit
• ✔️ Mounting screws and brackets
• ✔️ 12-month manufacturer's warranty

Why Buy from A-Grade Hydroponics? 🏆

A-Grade Hydroponics has been Melbourne's trusted hydroponic store since 2013. We only stock products we've tested ourselves — if we don't use it, we don't sell it. 📍 Click & Collect available — usually ready within 24 hours at A-GRADE HQ, 140–148 Chesterville Road, Cheltenham VIC 3192.

Please choose your products carefully, as A-Grade Hydroponics reserves the right not to accept returns based on either an incorrect choice or a change of mind.

However, we love happy customers so contact us with your query and we will do our best to accommodate you. If you have queries about a product you would like to purchase, please contact us to discuss your concerns before you buy.

A-Grade Hydroponics will honour all manufacturers warranties subject to the terms and conditions of those manufacturers. However warranty does not cover abuse, neglect, improper care, loss or damage from incorrect usage.

Warranty claims will be processed at A-Grade Hydroponics' discretion as a refund, repair or replacement. If products need to be returned to us for warranty purposes e-mail us at grow@agradehydroponics.com with the receipt/invoice number, date of purchase and a brief description of the fault (including photographs where possible). We will then issue you with a product return number.

All returns should be in original packaging and have the receipt/invoice number, date of purchase, and product return number enclosed. The product return number should also be written on the outside of the package for easy identification purposes.

A-Grade Hydroponics has a strict 'no returns' or refunds policy for liquid products, like nutrients, additives, gels, calibration fluids etc, so please choose these items carefully.

*All orders are dispatched in unmarked boxes to maintain your privacy.*

DISPATCH AND DELIVERY

Orders are shipped via Australia Post or shipping platform Big Post. Orders are generally dispatched on Tuesday, Wednesday and Friday. Please allow for additional delivery time for remote areas. If you require express delivery, please contact our sales representatives at 03 9555 6667 or email grow@agradehydroponics.com to obtain a quote. 

Couriers will attempt delivery to the specified address. If no one is home to receive the delivery, the couriers will leave your parcel somewhere safe. If there is no safe place, re-delivery or collection will be offered by the carrier.

Due to the increasing frequency of online fraud and theft, we are unable to ship to P.O. Boxes and Parcel Lockers.

SHIPPING COSTS

All freight charges are calculated on weight, dimensions and location. We are committed to keeping shipping charges at a minimum and do not charge handling fees.

Please note: Freight costs are subject to change. Regional areas, large and bulky orders, and tail-lift delivery occasionally incur an additional levy. Should shipping costs need to be amended it will be to reflect the actual charges, and not incur additional ‘shipping and handling’ fees. We will notify you if this rare situation occurs.

A-Grade Hydroponics reserves the right to cancel the order if shipping costs become prohibitive and customers will be issued a full refund.

PAYMENT

All payments must be cleared before dispatch. Payments can be made online via PayPal, AfterPay, PayID or Electronic Funds Transfer. Payments can also be accepted via credit card by phoning 03 9555 6667.

Please allow at least 24 hours for payments to clear.

FULFILMENT OF ORDERS

You will be notified immediately if an item is permanently unavailable, with options for a replacement item at equal or higher value, refund or store credit.

All refunds will clear within 3-5 business days. Store Credits will be issued as an electronic Gift Card to be used online or in-store.

DANGEROUS AND PROHIBITED GOODS

These goods are available for in-store collection only.