Vials of excellent quality but there is no pressure relief valve on the spray heads. This causes the bottle to collapse due to the vacuum created by the intended use of the atomizer. I can't use them. But I also can't return them because we already put chemical identification labels on them. Our chandelier repair specialists brought them back to the store after a day of use. Are we the only buyers with this problem? Perhaps a few gentle mists a day on a houseplant won't cause the same problem. However, if I wanted a toy vaporizer, I would buy one from Walmart for $0.69. These are meant to be high quality atomizers and not toys. What chemicals have we added to them? Deionized water. In this way we do not exceed the design limits of the sprayer. I want a refund or replacement if the seller believes we received a faulty item. I will update as soon as we know how they plan to fix this issue.
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