Bostik Breathe tablet refills are tablets to recharge your Bostik Breathe humidity absorber.1 tablet is 250g. One full refill is 2 tablets (2x250g). Designed to provide up to 33% more absorption than using a standard moisture absorber with only one tablet.Adjustable to areas to be covered: 1 tab for 12m², 2 tabs for 25m².