i have a male cat and male dog. am intending to get both neutered but for the meantime... they sleep in my cupboard under the stairs ( its really big) the cat eats there and his litter is there. when dog was smaller he had a few accidents ( lino floor) and i thot i had cleaned it all thoroughly including lifting the lino and pouring loads of bicarb over any damp bits on concrete beneath. it is mopped everyday and cat litter changed daily and any faeces removed immiediately but i just cant get rid of the urine smell. i have 3 dangly air fresheners in there and i leave the dorr open all the time to let cat in and out but i can still smell it. any suggestions??? its really getting to me now