Air whirlpool tub – In modern whirlpool tubs, the so-called. bubble bath (air massage) provides several nozzles mounted in the bottom of the bathtub, individually supplied with air from the compressor. Air bubbles escape from the nozzles into the water bath. Baths with this type of massage are a new solution, considerably facilitating the disinfection of the system and maintaining hygiene. In older solutions, the air for hydromassage was supplied through the double bottom of the bathtub.