This refrigerator deodorizer is manufactured with a special process, which can remove various peculiar smells in the refrigerator, keep the air fresh, and let you and your family live a healthy and safe life. -It can also absorb up to 10% of its own weight, thereby reducing condensation. And absorb xylene, formaldehyde, benzene, ammonia, TVOC, toluene, methyl mercaptan. -The refrigerator recommends 1-2 packs per layer. A pack of 50g is valid for up to 30 days and can be exposed to the sun for 3-4 hours on each side. Before replacement, one pack can be used for up to 6 months. -Open the transparent packaging and place the product in the appropriate corner of the refrigerator.