- For a powerful suction performance - Certified: filter performance, suction power and operating life tested by TÜV (German technical inspection association) - Suitable for Philips vacuum cleaner bags with the designation: - Size: Oslo; HR 6938; HR 6939, HR 6983 - Also suitable for different vacuum cleaner bags from: - Karstadt; Lloyds; Mio-Star; Ruton; Bomann; Clatronic; Dirt Devil; Nilfisk