FAQs
This article contains the FAQs for the HD400 Series Shark FlexStyle™ Air Styling & Drying System. This supports the following SKUs: HD400, HD410, HD420, HD430, HD430C, HD435 and HD440.
Hair Dryer questions
To engage Cool Shot, you must press the button and hold it down. The Cool Shot ends when the button is released. When the Cool Shot button is held down, you should feel the air turn from warm to room temperature in a few seconds, and the red LEDs will turn off. When you release the button, the temperature will return to the prior setting.
To change to hair dryer mode, slide down the hinge latch button on the back of the hair dryer and rotate the nozzle left until it clicks. (The nozzle is unlocked when the hinge latch button is held in the down position.) To change back to styling wand mode, slide the hinge latch button down and rotate the nozzle back up until it clicks into place.
Slide the filter cover off of the bottom of the unit, then use a new toothbrush to clean any built-up dust off the filter. Slide the filter cover back on the bottom of the hair dryer before using the hair dryer again. We recommend cleaning the filter monthly to help maintain unit performance.
VideoTry holding down the Cool Shot button for at least 10 seconds before turning off your hair dryer after styling to help cool it down. 
This hair dryer has been designed for North American homes. Using it in other countries is not recommended and will void your warranty.
Make sure not to cover the filter at the bottom with your hand. This will block the air inlet, and will cause a reduction in performance and can lead to overheating. We also recommend cleaning the filter monthly to help maintain unit performance. Slide the filter cover off of the bottom of the unit, then use a new toothbrush to clean any built-up dust off the filter. Slide the filter cover back on the bottom of the hair dryer before using the hair dryer again. 
This could be a sign that your hair dryer needs to be cleaned. Slide the filter cover off the bottom of the unit and use a new toothbrush to clean any builtup dust off the filter. Slide the filter cover back into place before using the hair dryer again. We recommend cleaning the filter monthly to help maintain performance. 
This could be a sign that your hair dryer needs to be cleaned. Slide the filter cover off the bottom of the unit and use a new toothbrush to clean any builtup dust off the filter. Slide the filter cover back into place before using the hair dryer again. We recommend cleaning the filter monthly to help maintain performance and help prevent overheating. This may also happen if the dryer has been operated for a long time without cooling. Set the dryer aside to cool, or cool the unit by using the Cool Shot button. Make sure not to cover the filter with your hand when using the hair dryer, since that can cause the unit to overheat. 
Press the reset button on the plug. If the dryer still will not turn on, check the circuit breaker. Failure to turn on can also be due to overheating. If your hair dryer powers off during use, allow it to cool for 30 minutes before trying again.
Auto-Wrap Curlers questions
Attach the Auto-Wrap Curlers to create waves or curls with less heat. The Auto-Wrap Curlers use air to wrap your slightly damp hair around the barrel and dry it in place. Reference your style guide and how-to videos to learn how to properly use the Auto-Wrap Curlers. 
The recommended settings for the Auto-Wrap Curlers are high heat and high airflow. 
Make sure the Auto-Wrap Curler you are using is fully clicked into place before use. You will know the Auto-Wrap Curler is locked in when you hear or feel a click, and when the styler lock is positioned at the top of its slot. If needed, twist the Auto-Wrap Curler clockwise slightly as you push it on. If the Auto-Wrap Curler still falls off before or during use, please call a customer service representative for additional assistance. 
• Prep your hair for curling by adding lightweight products such as a curl-creating serum, curl mousse, or a texture spray made for your hair type. • Make sure your hair is slightly damp (80 to 90% dry) before curling. • Use the high heat and high flow settings. • Keep your hair on the barrel using high heat, high airflow for 10 seconds. • Before removing your hair from the barrel, press and hold the Cool Shot button for 10 seconds. • Repeat high heat, high airflow for 10 seconds and Cool Shot for 10 seconds until hair is completely dry. • Roll each curl up to your roots and pin it in place while you continue to style the rest of your hair. Keep the curls pinned until they are fully cooled. • Allow curls to cool completely before running your fingers through them. • Use a setting or holding spray after you create each curl. Follow the link below to veiw our How to video: Hair Styler | Tips for Curl Longevity, Straight and Wavy Hair (Shark FlexStyle™)
• Prep your hair for curling by adding lightweight products such as a curl-creating serum, curl mousse, or a texture spray made for your hair type. • We recommend using the Paddle Brush or Oval Brush to dry, smooth and stretch your hair until it is slightly damp (80 to 90% dry) before curling. • Use the high heat and high flow settings. • Keep your hair on the barrel using high heat, high airflow for 10 seconds. • Before removing your hair from the barrel, press and hold the Cool Shot button for 10 seconds. • Repeat high heat, high airflow for 10 seconds and Cool Shot for 10 seconds until hair is completely dry. • Allow curls to cool completely before running your fingers through them. • Use a setting or holding spray after you create each curl. Follow the link below to veiw our How to video: Hair Styler | Tips for Curl Longevity, Curly Hair (Shark FlexStyle™)
Depending on your hair type, your hair may come off the barrel in a ringlet. Before breaking up the curl, we recommend using a hold spray. Once the hair is fully cooled and sprayed, rake your fingers through the ringlet to break it up into a wave. Follow the link below to veiw our How to video: Hair Styler | Soft Curls for Straight Hair Hair Styler | Soft Curls for Wavy Hair Hair Styler | Soft Curls for Curly Hair
There are 2 curling barrels included in your model. The left barrel curls your hair in a clockwise direction, while the right barrel curls in a counterclockwise direction. To change the direction of your curls, simply switch barrels. 
Make sure you are taking sections that are the same size. (For example, if you find 1-inch sections work best for your hair type, make sure every section you take is a 1-inch section.) Make sure to take sections that are square at the root. The hair in each section you take should be all the same length. 
Reference the image from your style guide for information about which Auto-Wrap Curler is recommended for each side of your head so the curls you create go away from your face. The left barrel has an L printed on top, and the right barrel has an R on top. The left barrel will create counterclockwise curls, and the right barrel will create clockwise curls. 
• Try taking a smaller section of hair to wrap. • Test out different moisture levels with your hair. Different hair types may require more or less moisture for optimal curling. • Try holding your hair section closer to or farther from the ends, for better pickup and wrap. • Make sure to bring the barrel behind the ends of your hair section so that the tips will automatically wrap around the middle of the barrel.
Use sectioning clips or hair ties to prevent unwanted hair from being wrapped around the barrel.
Manually wrap a half-inch-to-1-inch section of hair around the barrel and hold it in place the way you would with a traditional hot curling wand. Turn on the styling wand while still holding your hair on the barrel. Hold hair in place for 10 seconds, then press and hold the Cool Shot button for 10 seconds to set your style. Repeat until your hair is completely dry. Turn off the styling wand, let go of your hair section, and reveal your curl! You can also try holding the styling wand horizontally for a tighter curl around the barrel.
• Try holding smaller sections of hair so more hair is able to wrap around the barrel. • Hold the barrel horizontally so more hair will stay on.
• Try holding a smaller section of hair. • Hold the styling wand horizontally when curling instead of vertically. • After your hair has started to wrap, create tension around the barrel by pulsing the barrel towards and away from your face as you bring it in towards your roots. The pulses will wrap your hair tighter around the barrel, which will help create a tighter curl.
Oval Brush questions
Attach this styler to the hair dryer and use it on all hair types to dry, smooth, defrizz, and add volume—all at the same time. Smoothing bristles enable grabbing, smoothing, and shining, while detangling bristles enable combing and detangling. Best for straight, wavy, curly, or coily hair. 
The recommended settings for the Oval Brush are medium heat and medium airflow. 
Make sure the Oval Brush is fully clicked into place before use. You will know the Oval Brush is locked in when you hear or feel a click, and when the styler lock is positioned at the top of its slot. If needed, twist the Oval Brush clockwise slightly as you push it on. If the Oval Brush still falls off before or during use, please call a customer service representative for additional assistance.
The Oval Brush has two types of bristles. One type is a high-heat-capacity nylon, and the other is boar. The nylon bristles are larger and help in combing and detangling, while drying at the same time. The boar bristles are sourced from a natural material that promotes grabbing, smoothing, and shining, while seamlessly distributing your hair’s natural oils. 
If you find that you get frizz when using the brush, decrease the airflow. If you still get some frizz, finish styling by brushing down the outside of the hair and pulling the hair through the boar bristles, then use Cool Shot to relax the cuticle. Try using hair products made for your hair type that help to reduce frizz before and after styling.
Try reducing the airflow to help reduce frizz and improve smoothing. This will also help you to have better control over your styling. Use hair products made for your hair type that help to reduce frizz before and after styling.
Brush smaller sections of hair to allow the smoothing bristles to better grip your hair and create a smoother style. Increase the heat and airflow to create a straighter style and to speed up your styling.
Brush smaller sections of hair to allow the smoothing bristles to better grip your hair and create a smoother style. Increase the heat and airflow to create a straighter style and to speed up your styling. Use hair products that help to straighten or stretch your hair before styling.
Try taking smaller sections of hair so you have better control during styling. This can also help minimize frizz and improve smoothing.
Try reducing the airflow to help minimize frizz and improve smoothing. This will also help you to have better control over your styling.
Paddle Brush questions
Use on all hair types to dry, smooth, defrizz, and straighten—all at the same time. Smoothing bristles enable grabbing, smoothing, and shining, while detangling bristles enable combing and detangling. Best for straight, wavy, curly, or coily hair. 
The recommended settings for the Paddle Brush are medium heat and high airflow. 
Make sure the Paddle Brush is fully clicked into place before use. You will know the brush is locked in when you hear or feel a click, and when the styler lock is positioned at the top of its slot. If needed, twist the Paddle Brush slightly as you push it on. If the Paddle Brush still falls off before or during use, please call a customer service representative for additional assistance.
The Paddle Brush has two types of bristles. One is a high-heat-capacity nylon, and the other is boar. The nylon bristles are larger and help in combing and detangling, while drying at the same time. The boar bristles are sourced from a natural material that promotes grabbing, smoothing, and shining, while seamlessly distributing your hair’s natural oils. 
If you get frizz when using the brush, decrease the airflow. If you still get some frizz, finish styling by brushing down the outside of the hair and pulling the hair through the boar bristles, then use Cool Shot to relax the cuticle. Use hair products made for your hair type that help to reduce frizz before and after styling.
Split your hair into smaller sections for better root access. Place the brush under the section of hair and brush in an upward motion to help build volume at the roots. Hold the brush at the root for 3 to 5 seconds before pulling it through the hair for even more volume.
Try reducing the airflow to help minimize frizz and improve smoothing. This will also help you to have better control over your styling. Use hair products that help to reduce frizz before and after styling.
Try brushing smaller sections of hair to allow the smoothing bristles to better grip your hair and create a smoother style. Increase the heat and airflow to create a straighter style and to speed up your styling.
Brush smaller sections of hair to allow the smoothing bristles to better grip your hair and create a smoother style. Increase the heat and airflow to create a straighter style and to speed up your styling. Use hair products that help to straighten or stretch your hair before styling.
Try taking smaller sections of hair so you have better control during styling. This can also help minimize frizz and improve smoothing.
Try reducing the airflow to help minimize frizz and improve smoothing. This will also help you to have better control over your styling.
The Paddle Brush can be used to stretch and lengthen coily hair to prep it for curling or additional styling. You can also use the Paddle Brush to stretch and lengthen hair for an everyday look. 
Curl-Defining Diffuser questions
Attach the Curl-Defining Diffuser for fast, consistent drying from root to tip. To enable curl perfection, our Curl-Defining Diffuser features retractable and extendable prongs. Retract the prongs for shorter, finer hair and less heat on the scalp. Extend the prongs for longer, thicker hair and to reach and lift at the root. Best for wavy, curly, and coily hair. 
The recommended settings for the Curl-Defining Diffuser are low heat and low airflow. 
The prongs on the Curl-Defining Diffuser extend and retract to allow a customized diffusing experience. Slide the lever left or right to extend or retract. Extend the prongs for very thick, long, or coarse hair. They help reach the roots, and will help if you have a difficult time drying them. Retract the prongs for shorter or finer hair, or when you only want to dry the ends. 
Make sure the Curl-Defining Diffuser is fully clicked into place before use. You will know it is locked in when you hear or feel a click, and when the styler lock is positioned at the top of its slot. If needed, twist the Diffuser slightly as you push it on. If the Diffuser still falls off before or during use, please call a customer service representative for additional assistance.
Apply curly hair products such a leave-in conditioner or curl-defining cream to wet hair before drying to help define your curls and prevent frizz. Make sure you are using the Curl-Defining Diffuser on the lowest airflow setting to help prevent frizz.
Try increasing the heat to help speed up the dry time for thicker hair.
The Shark FlexStyle™ Air Drying and Styling Curl-Defining Diffuser is not compatible with any other hair dryers including the Shark HyperAir™.
Styling Concentrator questions
Attach the Styling Concentrator to dry and style in fewer steps. The Styling Concentrator rotates, so airflow is always in line with your round brush. Use the airpath for a quick, all-over dry, then finish with a round brush for smoothing, shaping, and bending. Best for straight, wavy, curly, and coily hair. 
Make sure the Styling Concentrator is fully clicked into place before use. You will know the concentrator is locked in when you hear or feel a click, and when the styler lock is positioned at the top of its slot. If needed, twist the Styling Concentrator slightly as you push it on. If the Styling Concentrator still falls off before or during use, please call a customer service representative for additional assistance.
Try reducing the airflow to help minimize frizz and improve smoothing. This will also help you to have better control over your styling. Use hair products made for your hair type that help to reduce frizz before and after styling.
Wrap your hair around a round brush and dry it in place using the Styling Concentrator.
Place a round brush under the roots and brush upward while drying with the Styling Concentrator.
Product Specifications
1300 Watts
120 volts
The cord is 8 feet long
1.54 lbs
1.8″(L)x1.8″(W)x13.5″(H)
