Embodiments of a self-drying litter box are described hereinthat includes a tray-superposition arrangement having a lower tray and anupper tray. The upper tray is mounted onto the lower tray in spacedrelationshipso as to define an empty volume therebetween. The upper tray includes abottom defining a surface capable of receiving litter material and wastematerialthereon and is provided with apertures for allowing air circulating throughthebottom of the upper tray. The lower tray receives second litter material andanyportion of the first litter and waste materials that falls from the upper traythrough the apertures. The tray-superposition arrangement defines one or moreventilation openings for allowing air circulation between the empty volume andoutside of the tray-superposition arrangement that dries litter and wastematerials in the upper and lower trays.
