How can we help?

Add the products you need to your cart and complete the secure online checkout. You will be asked for your name, delivery address, email and phone number, and shipping is calculated before you pay.

Prefer to order by phone? Call 1300 263 551 and our team can take your order and process payment securely.

We accept Visa, Mastercard and American Express, PayPal, Afterpay, Shop Pay, Apple Pay and Google Pay through our encrypted checkout.

You can also call 1300 263 551 and pay by card over the phone.

Yes. Afterpay is available at checkout on eligible orders and splits the total into four interest-free instalments. Afterpay sets its own spending limits and approval rules.

See Finance with Afterpay for details.

Yes. Finance is available so you can get restoration equipment now and spread the cost. Finance is subject to approval, and terms, conditions, fees and charges may apply.

Read more on our finance page or call 1300 263 551.

Yes. All prices shown on thorair.com.au are in Australian dollars and include GST. The GST amount is itemised on your tax invoice.

Yes. A confirmation email with your tax invoice is sent to the email address you enter at checkout as soon as payment is confirmed. If you need a copy re-sent or need your company name or ABN added, email info@thorair.com.au with your order number.

No. Anyone can purchase from Thorair, including sole traders and home owners. You do not need an ABN or a registered company.

Enter your code in the Add discount field at checkout and select Apply. The saving shows in your order total before you pay. Only one discount code can be used per order unless the promotion says otherwise.

Yes, if it has not been dispatched. We can change the delivery address or cancel the order at any time before dispatch. Call 1300 263 551 or email info@thorair.com.au as soon as possible with your order number.

If the order has already left our warehouse, our returns process applies.

No. You can check out as a guest. Creating an account lets you see your order history and re-order faster. Sign in from the account icon at the top of any page using your email address.

Yes. Online checkout runs on Shopify's PCI-compliant platform and every transaction is encrypted. We do not store your card number.

Yes. For multiple units, mixed equipment or a full restoration fit-out, call 1300 263 551 or send your list to info@thorair.com.au. We can quote, suggest a suitable package and discuss bulk pricing.

You receive an order confirmation and tax invoice by email. When the order leaves our Gold Coast warehouse you receive a second email with your tracking link. Delivery is usually 3–5 business days.

Delivery takes 3–5 business days to most Australian addresses. Regional and remote areas, Western Australia and Tasmania can take a little longer.

Every order ships from our Gold Coast warehouse with tracking. Delivery times are estimates, not guarantees.

Shipping is shown at checkout before you pay. Our standard rates within Australia are:

• Dehumidifiers (50L, 70L and 90L): free shipping to most of Australia.
• Other orders: $30 flat rate, or free when the order is $2,000 or more.
• Western Australia: $50 per order.
• Tasmania: $200 per order.

Prices are in AUD and include GST.

Yes. Thorair 50L, 70L and 90L dehumidifiers ship free to most of Australia, and other orders ship free when they total $2,000 or more. A surcharge applies to Western Australia ($50) and Tasmania ($200).

Our equipment is heavy and ships from the Gold Coast, so long-haul and sea freight costs are higher. Orders to Western Australia have a $50 shipping charge and orders to Tasmania have a $200 shipping charge. The exact amount is shown at checkout before you pay.

Yes. We deliver to every state and territory, including regional, rural and residential addresses. If you would like to use your own freight company, call 1300 263 551 and we can arrange it.

Yes, through our international store. Customers outside Australia can order from www.thorair.com, which ships worldwide. New Zealand customers can use thorair.nz and customers in the UAE can use thorair.ae.

For large international orders, contact us for a freight quote.

When your order is dispatched we email you a tracking link. Open the link to see the latest scan from the courier. If you cannot find the email, check your spam folder or contact us with your order number.

More detail: Tracking an order.

Yes. You can collect from our warehouse and showroom at 1/14 Wheeler Crescent, Currumbin Waters QLD 4223. Please call 1300 263 551 before you come so we can have your order ready, especially for large orders.

Small items can be sent to a PO Box using postal services only. Dehumidifiers, air scrubbers and other large equipment travel by courier and need a street address.

Yes, at any time before the order is dispatched. Call 1300 263 551 or email info@thorair.com.au with your order number and the new address. Once the order is with the courier we may not be able to redirect it.

If the packaging is visibly damaged, refuse the delivery if you can and contact us straight away. If it was left without you present, take photos of the packaging and the item and send them to info@thorair.com.au or open a ticket at our Support Helpdesk.

Parcels are insured with the courier. We arrange a refund or replacement once the courier completes its investigation.

If your order has not arrived after the estimated delivery time, contact us with your order number and we will investigate with the courier. If the courier confirms the parcel is lost, we process a refund or send a replacement.

If part of your order is out of stock we contact you. You can choose to wait for the item to be restocked or receive a refund for it. Items that are in stock are held for you in the meantime.

Large equipment is delivered by courier and a signature may be required, so it is best to have someone there to receive it. You can add delivery instructions in the order note on the cart page.

Our warehouse dispatches Monday to Friday, excluding public holidays, and couriers generally deliver on business days. Orders placed on a weekend or public holiday are processed on the next business day.

Contact us before sending anything back. Change-of-mind returns are only accepted when the item is unused, in its original packaging and in resellable condition, and the return has been approved by our team.

You arrange and pay for return shipping. Approved change-of-mind returns are refunded as store credit, and the original shipping cost is not refunded.

Email info@thorair.com.au or open a ticket at our Support Helpdesk with your order number, the product and the reason for the return. We reply with the next steps and the return address. Please do not send goods back without contacting us first.

Contact us straight away with your order number and photos. If we sent the wrong item or the product is faulty, we arrange a replacement or refund at no cost to you. Faults that appear later are handled under our warranty.

Once a return is received and approved, or a cancellation is confirmed, we process the refund promptly and email you. Your bank or card provider can then take several business days to show the money in your account.

Yes, if it has not been dispatched. Call 1300 263 551 or email info@thorair.com.au as soon as possible. Orders that have already been dispatched are handled as a return.

For change-of-mind returns, you do. For warranty claims you pre-pay the return freight and we reimburse it when the claim is approved. If we sent the wrong item, we cover the freight.

Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure, and to have goods repaired or replaced if they are not of acceptable quality. Nothing in our policies limits those rights.

The full terms are in our refund and warranty policy and shipping policy.

Thorair products come with a 2-year warranty. In the first year a unit that fails because of a manufacturing fault is replaced in full. In the second year we supply replacement parts free of charge for covered issues; labour and transport may not be included.

Full details: Replacement Warranty.

Email info@thorair.com.au, call 1300 263 551 or open a ticket at our Support Helpdesk. Please include:

• Proof of purchase (invoice or order number)
• A description of the fault
• Photos or a short video where relevant

Please do not open or attempt to repair the unit yourself, as this can void the warranty.

We recommend it. Registering takes a minute and gives our warranty team your product and purchase details up front, which speeds up any future claim. Register at Register Warranty.

The warranty covers manufacturing defects under normal use. It does not cover misuse, physical or accidental damage, unauthorised modifications or repairs, or normal wear on consumables such as filters.

The warranty applies to the original purchaser named on the invoice.

The original purchaser named on the invoice. If you have resold the equipment, the new owner cannot claim directly; the claim needs to come from the original purchaser.

You pre-pay the return freight and we reimburse it when the claim is approved. For older units, return freight may be at your cost. Thorair pays the freight to send the replacement to you.

No. The Thorair replacement warranty applies to Thorair-branded equipment. FLIR cameras are covered by FLIR's own manufacturer warranty. Contact us and we will help you with a FLIR claim.

Yes. Replacement filters, hoses and common parts are available in our filters and accessories ranges. For other parts or an out-of-warranty repair, contact our Support Helpdesk with the model and the fault.

Once we receive the returned unit, warranty claims are normally assessed within 7 days. We then confirm the outcome by email and arrange the replacement, parts or refund.

Pick by the size of the space and how much water you need to remove per day:

• 50L Pro LGR: apartments, single rooms and bathrooms. The most compact, and stackable for fleet vehicles.
• 70L: whole-of-house floods, construction drying and warehouses. The best all-rounder.
• 90L Pro LGR: large commercial losses, basements, plant rooms and industrial spaces.

Compare all three side by side on our dehumidifiers page.

LGR stands for Low Grain Refrigerant. An LGR dehumidifier pre-cools the incoming air so it keeps removing moisture when the air is already fairly dry, which is when a standard refrigerant dehumidifier slows down. That makes LGR units the standard choice for water damage restoration and structural drying.

The figure is how many litres of water the unit can remove from the air in 24 hours under its rated test conditions. For example, the Thorair 50L removes 50 L/day at 30 °C and 80% relative humidity. Real-world extraction depends on the temperature and humidity of the space.

It depends on the size of the affected area, how wet the materials are and the temperature. As a general approach, restorers place one dehumidifier per affected zone and several air movers around the wet walls and floor so that dry air moves across every wet surface.

Tell us the floor area and what happened and we will recommend a setup. Call 1300 263 551.

An air scrubber is a jobsite machine. It moves a large volume of air through HEPA filtration, can be ducted to create negative pressure, and is built for dust, mould spores and smoke on restoration and construction sites.

An air purifier is a quieter appliance for cleaning the air in a home or office. See air scrubbers and air purifiers.

Choose by the volume of the space and how many air changes per hour the job needs:

• 500CFM: compact, light (17.5 kg) and stackable. Suits rooms, units and small containments.
• Hulk 1000CFM: twice the airflow with 4-stage filtration for larger rooms, whole floors and heavier dust or mould loads.
• Hulk 2000CFM: for large commercial spaces and demanding projects.

To size it, multiply the room volume in cubic metres by the air changes per hour you need; that gives the airflow required in m³/h (1 CFM is about 1.7 m³/h).

Snail (centrifugal) blowers push a fast, focused stream of air and are the standard for drying carpet and floating carpet. Low-profile and axial movers shift a larger volume of air across wide floor areas and walls. The downdraft axial blower dries 360° around itself, which suits open floors.

Browse the range: air blowers and carpet dryers.

Yes. Our start-up packages bundle dehumidifiers, air scrubbers, air movers and filters at a package price: the Starter Kit, the Crew Kit and the Premium Scrubber Pack. Call 1300 263 551 if you would like a package tailored to your work.

Yes. Our dehumidifiers and air scrubbers plug into a standard 230–240 V household power point. They are commercial machines, so they are larger and louder than a domestic appliance. For everyday home air quality, see our quieter air purifiers.

Yes. Thorair dehumidifiers are used to control humidity in warehouses, basements, plant rooms, gyms and storage areas as well as for flood drying. Set the target humidity on the control panel and the unit cycles to hold it.

A moisture meter tells you how wet a material is at the point you test. A thermal camera shows temperature differences across a whole wall or ceiling, which helps you find hidden moisture quickly. Many restorers use both: the camera to find the area and the meter to confirm it. See thermal imaging.

The Thorair 50L Pro LGR:

• Water removal: 50 L/day at 30 °C, 80% RH
• Airflow: 300 m³/h
• Operating temperature: 2 °C to 35 °C
• Power: 230 V / 50 Hz, 750 W compressor, max 3.2 A
• Size: 57 × 37 × 45 cm (L × W × H)
• Weight: 32 kg

The Thorair 70L:

• Water removal: 70 L/day at 30 °C, 90% RH
• Airflow: 300–550 CFM
• Power: 230 V / 50 Hz, 750 W compressor, max 4.5 A
• Size: 66 × 54 × 90 cm (L × W × H)
• Weight: 42 kg

The Thorair 90L Pro LGR:

• Water removal: 90 L/day (105 L/day at 26 °C, 90% RH)
• Airflow: 600 CFM
• Power: 230 V / 50 Hz, max 6 A
• Noise: 60–80 dB
• Size: 63 × 52 × 60 cm (L × W × H)
• Weight: 42 kg

Yes. All three models have a built-in condensate pump, so collected water is pumped out through the drain hose automatically. There is no bucket to empty.

Each dehumidifier comes with its drain hose and power lead, ready to run. Extra hose is available: the 7.5 m dehumidifier hose.

Yes, the 50L and 90L models are stackable, which saves space in a van or storeroom. All Thorair dehumidifiers are on wheels, and the 50L and 90L have retractable handles.

Yes. All models run on a standard 230 V, 10 A Australian power point. Maximum current draw is 3.2 A for the 50L, 4.5 A for the 70L and 6 A for the 90L, so several units can share a circuit depending on what else is plugged in.

Multiply the unit's power in kilowatts by the hours it runs and your electricity rate. A 750 W compressor running for 24 hours uses about 18 kWh. At 30 cents per kWh that is about $5.40 a day. Actual use is lower when the unit cycles off at its humidity set point.

The Thorair 50L operates from 2 °C to 35 °C. All models use automatic thermostat defrost, so they keep working in cool conditions where coils would otherwise ice up.

1. Remove standing water first with a pump or wet vacuum.
2. Close windows and doors to the affected area.
3. Place the dehumidifier centrally, with clear space around the air inlet and outlet.
4. Run the drain hose to a sink, floor waste or outside, with no kinks.
5. Position air movers so air travels across the wet surfaces.
6. Check moisture readings daily until the materials reach their dry standard.

Most water-damaged rooms take about three to five days of continuous drying with the right equipment. The time depends on how long the materials were wet, what they are made of, the temperature and how much air movement there is. Use a moisture meter to confirm the structure is dry before removing equipment.

Use the 7.5 m dehumidifier hose to reach a drain further away. To send dry air into a cavity such as a roof space or sub-floor, connect flexible ducting and route it through an opening.

Switch the unit off and unplug it, slide the filter out, then vacuum it or rinse it with water and let it dry fully before refitting. The filters are washable. Check the filter after every job; a blocked filter reduces airflow and water removal.

WiFi-enabled models can be monitored and adjusted from your smartphone. Use a 2.4 GHz WiFi network and keep the unit within range of the router. Step-by-step instructions and the PDF guide are on our WiFi connectivity page.

Commercial dehumidifiers are louder than domestic ones because they move far more air. The Thorair 90L runs at 60–80 dB depending on fan speed, which is similar to a vacuum cleaner at the top of its range.

User manuals for all Thorair equipment are on our product manuals page, and brochures are on the product catalogue page.

The Thorair 500CFM HEPA Air Scrubber:

• Airflow: 500 CFM with variable speed
• Filtration: 2-stage, G4 pre-filter and H13 HEPA main filter
• Power: 220–240 V / 50 Hz, 200 W, max 1.5 A
• Pre-filter size: 400 × 400 × 20 mm
• Main filter size: 480 × 400 × 50 mm
• Size: 64 × 40 × 62 cm (H × W × D)
• Weight: 17.5 kg, stackable

The Thorair Hulk 1000CFM:

• Airflow: 1000 CFM
• Filtration: 4-stage, including a G4 pre-filter and H13 HEPA main filter
• Power: 230–240 V / 50 Hz, 750 W, max 3.0 A
• Pre-filter size: 400 × 400 × 20 mm
• Size: 58 × 56 × 88.5 cm (H × W × D)
• Weight: 36 kg

The Hulk 2000CFM is our largest air scrubber. It delivers 2000 CFM of airflow for large commercial spaces and demanding projects where a single machine needs to turn over a lot of air quickly.

• 500CFM: HEPA Pre Filter 10pc (400 × 400 × 20 mm), HEPA 500CFM Primary Filter (483 × 405 × 53 mm), Primary Premium Carbon Filter (482 × 403 × 55 mm) and HEPA Activated Carbon Filter 4pc (400 × 400 × 20 mm).
• Hulk 1000CFM: HEPA Pre Filter 10pc, HEPA Activated Carbon Filter 4pc and the Hulk Primary Filter (406 × 406 × 155 mm).
• Hulk 2000CFM: uses a larger pre-filter. The 400 × 400 mm pre-filter and carbon filter do not fit. Contact us for the right filters.

No. The HEPA Pre Filter 10pc and the HEPA Activated Carbon Filter 4pc (both 400 × 400 × 20 mm) fit the 500CFM and Hulk 1000CFM air scrubbers only. They are not suitable for the Hulk 2000CFM.

It depends on how dusty the job is. Check the pre-filter daily on dusty or mould jobs and replace it when it is visibly loaded; changing the cheap pre-filter often is what protects the HEPA filter. Replace the HEPA filter when airflow drops even with a new pre-filter, or after contaminated work such as mould or sewage jobs.

The Thorair H13 HEPA primary filter captures 99.95% of particles at 0.3 microns. That includes fine dust, mould spores, pollen, smoke particles and many bacteria. The G4 pre-filter in front of it catches larger dust and debris.

Use an activated carbon filter when the problem is odour or gases, not just dust. Carbon adsorbs smoke and soot odours, paint and solvent fumes, sewer odours and other volatile organic compounds (VOCs) that a HEPA filter cannot capture.

1. Seal the work area with plastic sheeting, leaving a small make-up air opening.
2. Place the air scrubber inside the contained area.
3. Attach flexible ducting to the scrubber's outlet and run it outside the containment, ideally outdoors.
4. Switch on. Air is drawn into the work area, filtered and exhausted, so dust and spores cannot escape to clean rooms.

The Thorair 7.5 m PVC flexible duct comes in three diameters: 8 inch for the 500CFM air scrubber, 12 inch for the 1000CFM air scrubber, and 4.5 inch for use with Thorair duct adaptors. Each length is 7.5 m, weighs 4 kg and works from −20 °C to 80 °C.

Yes. Run the scrubber in the work area while cutting, sanding or demolishing, with doors closed or the area contained. It pulls airborne dust through the filters and keeps it from spreading through the building.

Yes. Thorair equipment carries SAA and ASA electrical safety approvals. Insurers and builders commonly require approved equipment on restoration and construction sites.

The Thorair Pro Snail:

• Three speeds: 900 / 1000 / 1350 CFM
• Power: 220–240 V / 50 Hz, 550 W, 2.6 / 2.8 / 3.2 A
• Cord: 7.5 m
• Size: 49 × 43 × 47 cm (L × W × H)
• Weight: 16 kg

The Thorair Mini Snail is the compact option: 170 W, 0.7 A, 31 × 29 × 34.5 cm and only 4.8 kg. It suits cupboards, bathrooms and tight spaces, and is easy to carry several at a time.

• Pro HEPA Filter Turtle: 150 W, 0.65 A, 1200 CFM, 7.5 m cord, 55 × 47 × 28 cm, 13 kg.
• Pro Square: 160 W high / 140 W low, 600 CFM, 7.5 m cord, 55 × 47 × 28 cm, 13 kg.

Both are low-profile units that move air across wide floor areas while drawing very little power.

The Thorair Downdraft Axial Air Blower pushes air down and out in every direction, drying 360° around itself. It moves 2500 m³/h at 8.5 m/s on just 150 W (0.7 A), measures 53 × 50 × 36 cm and weighs 11.1 kg.

Add up the amps. A standard Australian 10 A power point supplies 10 A. The low-profile blowers draw about 0.65–0.7 A each, so many can share a circuit; the Pro Snail draws up to 3.2 A on high, so allow for three per circuit at most. Remember to include the dehumidifier on the same circuit.

Floating means lifting the carpet with air so both the carpet and the underlay or subfloor dry. Release the carpet at a corner or edge, slide the snout of a snail blower under it and clamp the carpet to the outlet. The carpet lifts on a cushion of moving air. Thorair snail blowers include a clamp for this.

Aim air along the wet surface, not straight at it. Place movers along the walls at about a 45° angle, all pointing the same way so air circulates around the room. Keep the dehumidifier in the same closed space so the moisture the movers lift off is removed from the air.

The Snail Blower Adapter and Blower Hose Attachment let you direct air into wall cavities, under cabinets and into tight spaces. See all accessories.

The Thorair Air Purifier with LED Light moves up to 1000 m³/h of air and suits larger rooms and open-plan spaces up to about 120 m².

It runs between about 26 dB and 55 dB depending on fan speed. The lowest setting is quiet enough for a bedroom at night.

The HEPA filter lasts about 12 to 18 months in normal home use. The pre-filters are washable, so rinse them when they look dusty and let them dry before refitting.

Yes. HEPA filtration captures fine airborne particles including dust, pollen, pet dander, smoke particles and mould spores. An air purifier does not remove the source of mould, so fix the moisture problem as well.

The Thorair Air Purifier has a 1-year Australian warranty and a 30-day return period, in addition to your rights under Australian Consumer Law.

For bedrooms and small offices, see the air purity range, which includes a compact home unit as well as the larger 1000 m³/h model for living areas.

Our thermal imaging range includes the FLIR C5 compact thermal camera, the FLIR ONE Pro for smartphones, the FLIR MR277 combined moisture meter and thermal imager, the Protimeter SurveyMaster moisture meter and a range of handheld LCD thermal cameras.

Wet building materials are usually cooler than dry ones because of evaporation. A thermal camera shows that temperature difference as an image, so you can see how far water has travelled behind walls, under floors and in ceilings without opening them up.

No. It measures surface temperature. A cold patch suggests moisture but can also be a draught or missing insulation, so confirm with a moisture meter. The FLIR MR277 combines both tools in one device.

The Protimeter SurveyMaster is a dual-mode moisture meter. Pin mode measures moisture at the surface, and non-invasive mode checks below the surface without marking the material. It is widely used to track drying progress day by day.

FLIR products carry FLIR's manufacturer warranty, not the Thorair replacement warranty. Contact us if you need help with a FLIR warranty claim.

1. Room conditions: in cool or already-dry air, every dehumidifier removes less water. That is normal.
2. Filter: a blocked filter cuts airflow. Clean it.
3. Doors and windows: keep the area closed so you are not drying outside air.
4. Hose: check the drain hose for kinks or blockages.
5. Humidity setting: make sure the set point is below the current room humidity.

If it still under-performs, open a ticket at our Support Helpdesk.

Check that the drain hose is firmly connected, not kinked and not running uphill beyond the pump's lift. Make sure the unit is standing level and upright. If water still collects or the pump does not run, switch the unit off and contact our Support Helpdesk.

Some frost in cool rooms is normal, and the automatic defrost cycle clears it. Heavy ice usually means restricted airflow, so clean the filter and make sure the air inlet and outlet are not blocked. If it keeps icing in a warm room, contact support.

A loaded filter is almost always the cause. Replace the pre-filter first, then check the HEPA filter. Also check that ducting is not crushed or kinked and that it is not longer than it needs to be.

Check the power point with another appliance, check the lead for damage and make sure any switch or circuit breaker on the unit has not tripped. If several machines share a circuit, the breaker at the switchboard may have tripped, so spread the load across circuits. If it still will not start, contact our Support Helpdesk.

Error codes are listed in the user manual for each model on our product manuals page. If the code is not listed or does not clear after a restart, send a photo of the display to our Support Helpdesk.

Drain the hose and pump before storage, clean the filter and store the unit upright in a dry place. Transport refrigerant dehumidifiers upright. If a unit has been laid on its side, stand it upright for a few hours before switching it on so the compressor oil settles.

After mould, sewage or smoke work, wipe the casing down with a suitable cleaner, replace disposable filters, wash reusable filters and let everything dry before storage. Bag and dispose of used filters according to the job's requirements.

All user manuals are on our product manuals page, brochures are on the product catalogue page, and the WiFi setup guide is on the WiFi connectivity page.

Open a ticket at our Support Helpdesk with the model, your order number and photos or a short video of the problem. You can also call 1300 263 551 during business hours.

Yes. We offer volume pricing on larger orders. Call 1300 263 551 or email info@thorair.com.au with what you need and we will put together a quote.

Yes. Businesses can buy Thorair equipment in volume to resell, subject to stock. If you would like to set up a reseller arrangement, call 1300 263 551.

Hundreds of Australian restoration companies order from Thorair each year. Our equipment is used by water and fire damage restorers, mould remediators, builders, concreters, hospitals, schools, farmers and facility managers.

Thorair equipment is designed in Australia and manufactured in China. Thorair is an Australian-owned business based on the Gold Coast, Queensland.

Yes. Equipment finance is available so you can fit out a crew without tying up cash flow. Finance is subject to approval, and terms, conditions, fees and charges may apply. See our finance page.

Yes. Visit our showroom and warehouse at 1/14 Wheeler Crescent, Currumbin Waters QLD 4223. Please call 1300 263 551 first so someone is available to show you the range.

Yes. Thorair is affiliated with the National Restoration Network and supplies approved equipment used on insurance restoration work. See National Restoration Network and subcontracting opportunities.

Our range also covers home and office air purifiers, thermal cameras and moisture meters, replacement filters, ducting, hoses, containment mats and tools. See all products.

• Phone: 1300 263 551
• Email: info@thorair.com.au
• Support ticket: Support Helpdesk
• Contact form: Contact us

Monday to Thursday 8:00 am to 4:00 pm, Friday 8:00 am to 3:00 pm (Queensland time). Saturday and Sunday by appointment.

Our warehouse and showroom are at 1/14 Wheeler Crescent, Currumbin Waters QLD 4223, on the Gold Coast. We ship Australia-wide from there.

Go to the Support Helpdesk, fill in your details, describe the issue and attach photos or a video if you have them. You receive a ticket number and our team replies by email.

Use our international store at www.thorair.com, which ships worldwide and has its own support contacts. New Zealand: thorair.nz. UAE: thorair.ae.

We would love to hear from you. You can leave a review on the product page of the item you bought, or send feedback to info@thorair.com.au.

Email info@thorair.com.au or call 1300 263 551 and ask for the matter to be escalated. Please include your order number so we can look into it quickly.

Relative humidity is how much water vapour the air holds compared with the most it could hold at that temperature, shown as a percentage. Indoor comfort is usually 40–60% RH. Mould growth becomes likely when surfaces stay above about 70% RH.

CFM is cubic feet per minute, a measure of airflow. One CFM is about 1.7 cubic metres per hour (m³/h), so a 500 CFM air scrubber moves about 850 m³/h.

Air changes per hour is how many times a machine filters or replaces the full volume of air in a space each hour. Divide the machine's airflow in m³/h by the room volume in m³. A 850 m³/h scrubber in a 150 m³ room gives about 5.7 air changes per hour.

HEPA stands for High Efficiency Particulate Air. HEPA filters are rated by class; an H13 filter captures at least 99.95% of particles at the most penetrating size, around 0.3 microns.

G4 is a coarse filter grade. A G4 pre-filter sits in front of the HEPA filter and catches larger dust, lint and debris so the more expensive HEPA filter lasts longer.

Negative air pressure means the air pressure inside a contained work area is slightly lower than outside it, so air only flows inward. It is created by exhausting filtered air out of the area with an air scrubber and ducting, and it stops dust and spores escaping.

Structural drying is the controlled removal of moisture from a building's materials, such as timber, plasterboard and concrete, using dehumidifiers and air movers, until they return to their normal dry moisture content.

Refrigerant dehumidifiers condense water on cold coils and are most efficient in warm, humid air. Desiccant dehumidifiers absorb water with a drying material and work better in very cold or very dry conditions. LGR units are high-performance refrigerant dehumidifiers and suit most Australian restoration work.

VOCs are volatile organic compounds: gases given off by paints, solvents, smoke, adhesives and some building materials. They cause odours and can affect health. Activated carbon filters adsorb VOCs; HEPA filters do not.

A dry standard is the normal moisture reading of an unaffected area of the same material in the same building. Restorers dry wet materials until their readings match the dry standard.

An air mover, also called a carpet dryer or blower, is a high-velocity fan that pushes air across wet surfaces. Moving air speeds up evaporation, and the dehumidifier then removes that moisture from the air.

An air scrubber, also called a negative air machine, is a portable filtration unit that draws air through a pre-filter and a HEPA filter to remove dust, mould spores and other airborne particles on work sites.