Miele Genuine cloth bags feature a hole cover with higher filtration than standard paper bags, ideal for allergy sufferers. Fits S170i - 185 series models. Also includes 1 pre-motor filter and 1 super air clean post motor filter. Genuine Part - Miele 5294741 For optimum performance and minimal foul odour, change bag every 1-2 months or when 3/4 full. Store vacuum bags in a clean, dry place.