Each box of Miele GN dust bags includes 4 HyClean dust bags 1 Super air clean exhaust filter 1 Secondary filter The Miele GN HyClean bags is an upgrade to the Intensive Clean Plus dust bags and are designed to fit the following Miele mid-size canister vacuum models: S400i thru S456i. S600 thru S658. S800 thru S858. S5000 thru S5999. The Miele GN dust bags replace the Miele Type G bag and the Miele Type N bag. Genuine Miele vacuum product.