Super concentrated refill cartridge, giving a fine, dry dispersion of the fragrance. The fragrances contains the Odour Neutralising Technology (O.N.T technology), which destroys at source and chemically neutralises unpleasant odours and is effective against a variety of malodours such as urine, body odours, smoke, mould and mildew. Good Sense Shea & Sandalwood shows significant malodour reduction immediately after introduction of fragrance with a four hour residual action.