The Thomas Dust Bag Set 99 provides a reliable replacement solution for maintaining the suction power of your vacuum cleaner. This set includes five MicroPor® dust bags and a dedicated holder, with each bag offering a 3-litre capacity to handle household debris efficiently. These bags are specifically designed for compatibility with a wide range of Thomas models, including the Twin XT, Vestfalia XT, Mistral XS, and Lorelea XT. They also fit the Cat & Dog XT as well as the various Aqua series, such as the Anti-Allergy, Pet & Family, Multi Clean XT, and Home Clean & Parquet, ensuring a secure fit for those using these specific machines.