To have an effective warm air dryer, a bidet toilet seat must be able to provide a robust flow of air with adjustable temperature.  Average drying time for a typical bidet toilet seat drying function is roughly 1-3 minutes.  No bidet toilet seat on the market today will fully dry a user much faster than 1 minute, but we have identified some of the best models available.  At the top of the list, the TOTO s300e and TOTO s350e washlets have the most effective warm air dryers we’ve tested. 

TOTO s350e Washlet

#1 TOTO s300e / s350e Washlets

It comes as no surprise that the two most luxurious bidet toilet seats money can buy have the most effective warm air drying functions.  They both appear on this list because the s300e and s350e have identical drying functions (the only difference between the two is an auto open/close seat and lid on the s350e).  While the majority of bidet seat dryers will fully dry a user post-wash in the 2-4 minute range, the TOTO washlets’ superior drying power gets the job done in about 1 – 1.5 minutes. 

TOTO Remote

The warm air dryers on these TOTO bidet seats set themselves apart with superior air volume and pressure.  While we don’t have any statistics to back up our observations, the dryers feel noticeably stronger than other models.  Also, the amount of air that flows through the dryer vent feels considerably larger as well.  The s300e and s350e washlet dryers have 5 air temperature settings ranging from room temperature to very toasty.  Level 4 felt the most comfortable when used immediately post-wash and level 2 felt better when almost dry.

Brondell Swash 1000

#2 Brondell Swash 1000

The Brondell Swash 1000 bidet toilet seat is one of the best values on the market.  It has high quality construction and its operation is seamless and reliable.  The warm air dryer is also very effective and is only available on the Swash 1000 (not the Swash 900 or 300 models).  While not as robust as the TOTO washlets above, the drying function on the Brondell Swash 1000 is superior to almost every other bidet seat available.  The strength of the air stream is solid and the volume is enough to fully dry a user post-wash in about 1.5 – 2 minutes.

Brondell Swash 1000 Remote Lights

The Swash 1000 features 4 drying temperatures indicated by a colored light on the remote control.  It can blow at room temperature (light off), or be adjusted to 3 levels of warmth (blue, purple, red with red being the hottest).  We felt that the purple setting was most comfortable during testing. 

Blooming NB-R1063

#3 Blooming NB-R1063

The Blooming NB-R1063 bidet toilet seat is another strong all-around performer.  It features a sleek, slim design, tankless water heating, and an LED night light. Its warm air dryer is similar in performance to the Brondell Swash 1000, although we give a slight nod to the Brondell for what feels like larger air volume. 

Blooming NB-R1063 Remote

The NB-R1063 bidet seat’s dryer can be adjusted to 5 different temperature levels.  At level 4, it took about 1.5-2 minutes for us to feel fully dried after washing – very similar results as the Swash 1000. 


As a whole, bidet toilet seat warm air dryers are not the most effective functions.  They generally feel like hair blow dryers on a low setting and it will take a few minutes before the user are fully dried.  That being said, some models definitely perform better than orders and can cut drying time down considerably.  If price is no issue, the TOTO s300e and TOTO s350e washlets have the best dryers on the market.  If price is a factor, the dryers on either the Brondell Swash 1000 or the Blooming NB-R1063 bidet seats are very effective.