The reason for the increased popularity of air bathtub is that that air bathtub is cleaner than whirlpools. They assume that because air bathtub does not use a pump and pipes, they cannot harbor elements that can breed bacteria. The truth is that both air bathtub and whirlpools can be clean or problematic. It depends on how both are engineered and maintained. Air Bathtub is very easy cleaning the and hygienic maintenance of both whirlpools and air baths.