To keep your diffuser clean and ensure the best mixture of Hydur Fragrances it is recommended that you perform a cleaning cycle on your diffuser at least once a month, if you use your diffuser daily or in case any of these situation happens:

• Switch or change to another Scenting Oil
• Atomization volume becomes weak or there is no mist or less mist than usual

To do a cleaning cycle on your diffuser, follow these steps:

Step 1: Turn the device off and unplug prior to cleaning.
Step 2: Gently wipe the plate using a cotton swab dipped in rubbing/isopropyl alcohol.
Step 3: Fill a clean bottle with isopropyl alcohol.
Step 4: Install the bottle filled with rubbing alcohol to the diffuser and turn it on. Let it diffuse for 5-20 minutes or until the essential oil scent wears off.
Step 5: Replace the bottle of rubbing/isopropyl alcohol with your scenting oil.

Note: If scenting oil begins to build up on the lid, gently wipe it off using water or alcohol. Do not use aerosol sprays, solvents, or abrasives to clean the plastic or metal housing.

To clean and reuse your bottles, follow these steps:
Step 1: Prepare a large tub and have a bath towel you can lay on your counter to soak up the water.
Step 2: Unscrew the cap from the diffuser.
Step 3: Soak the bottle in a tub of warm, soapy water for 10-15 minutes.
Step 4: Put them in a new tub of warm water combined with a 1/2 cap of non-toxic cleaner and let it soak for 5-10 minutes.
Step 5: Soak the bottle, rinse one last time and let it air dry on a towel until they are completely dry.

• Unplug the diffuser immediately and discontinue use in the event of smoke or a burning smell
• Do not wrap the adaptor with cloth, paper, or anything that may result to avoid abrasions, cuts, fraying, crimping, and kinking
• Do not disassemble or attempt to self-repair the diffuser, this will void the warranty. Any damage caused by the user does not qualify for replacement by Hydur Fragrances
• Disconnect the diffuser from power adaptor before refilling, cleaning or moving the diffuser
• Clean the sensor with a rubbing alcohol-soaked cotton swab
• Do not use metal objects to clean the sensor; use only a cotton swab or cloth dipped in isopropyl alcohol or a neutral detergent
• Make sure to clean the unit before switching to different scenting oils
• Use only essential oils or Hydur scenting oils. Artificial, synthetic, or impure oils and fragrances can damage the diffuser.
• Avoid placing the diffuser in direct sunlight, close to a refrigerator or fan, or in a hot environment
• When not in use, clean the diffuser and store dry at 0°C—50°C, 5%-95% humidity.

Power cable may not be properly plugged in.

• Check if the power is on or off.
• Check if there is scenting or essential oil inside the bottle.

Your atomizer head might be blocked.

• Check if there is any scenting oil build up. In case there is a buildup, follow the cleaning instructions.
• Check whether the gasket is loose.
• Check whether the PU tube and HVAC hose is looser or not and if it is properly connected.

Your diffuser head is either displaced or the the diffuser is tilted.

• Check that the diffuser head is screwed properly to the bottle.
• Make sure that the diffuser is set on a hard, flat surface.
• Keep the diffuser constantly vertical do not tilt or keep the diffuser horizontal.

No. The Grandi Square diffuser does not use water. It atomize the scenting oils using a series of tubes, dispersing the oils in their purest form.

The Grandi Square v2.0 diffuses 100% essential oil or Hydur Scenting Oil. Other blends and oils may contain fragrances, base oils or synthetics that could result in malfunction. Hydur Scenting Oils are carefully blended and curated for Hydur Diffusers.

If you find the mist/intensity is too strong or weak, adjust the diffuser intensity to either a higher or lower setting to suit your preference.

The Centri Square HVAC has 20 scent intensity settings:

Average scenting oil consumption ranges from 0.38 ml – 8.00 ml per hour.

A Centri Square HVAC will cover up to 1,600 square meters.

The Centri Square HVAC includes:

• (1) Centri Square HVAC
• (1) 2.5 L Aluminum Scent Bottle
• (1) Atomiser Head
• (1) PU Tube
• (1) HVAC Hose
• (1) Atomiser Connector
• (2) Screws
• (1) Rubber Gasket
• (1) PTFE Tape/Sealing Tape
• (1) Handle

Yes. It is recommended that you perform a cleaning cycle at least once a month.

A 2.5 liter bottle can last approximately 78 days, depending on the intensity settings and diffusing times.

Connect the power plug to the outlet and turn the power switch on. The screen displays local time and scent intensity levels will show.

You can put your diffuser on either a table or the floor. Ideally, it would work best if you position it in the center of the room. If placing it on a shelf, desk, or some type of table, be sure it’s stable and not prone to accidents. Alternatively, you can wall mount it or connect to the HVAC. If you prefer wall mounting, make sure it is secured properly and is at least 6 feet above the ground and 2 feet from the ceiling. If you are using it in your bedroom, keep it at least 3 feet away from your bed. Choose flat surfaces and avoid placing it on or near any heat sources such as a furnace, heater, or direct sunlight.

In case you forget the password, simply press the reset button to restore to factory settings. The default password is 8888.

To set up your Centri Square HVAC, simply:

Step 1: Download the Hydur Scenting Controller app from Google Playstore or App Store.

Step 2: Turn on your bluetooth.

Step 3: Open the Hydur Scenting Controller app. You should see the name of one of your Ultra Cylinder Max.

Step 4: Select from the list your Ultra Cylinder Max device and enter the default password, 8888.

Step 5: Set up and configure your scenting schedule(s) desired.

To create a new scenting schedule using the app, simply:

Step 1: Select “Add New” under the “Schedule” section on the Homepage

Step 2: Choose to create your own schedule, or select one of the pre-set schedules

Step 3: Enter your desired Start time, End time, Name and intensity. If you would like the schedule to repeat, select the day(s) you would like it to repeat.

Step 4: Click “Save"

Yes. The diffuser will keep the schedules you have set. Once you reconnect via Bluetooth you can change the schedules, adjust the scent intensity or turn the diffuser off manually.