EnozMoth Bar - Cedar Scented

Are these pet-safe? I want them for my closet and drawers. I have pet birds in my room and would like to know if the smell might be toxic for them.

Why is it cheaper to buy enoz at home depot than online via amazon????

How effective is this product for killing or preventing carpet beetle infestations?

Why doesn't enoz sell replacement bars for the plastic holders???? i find that i am buying 8 holders 2-3 times a year. waste of plastic and money!